For this figure, when I got the bootleg I only owned the standard edition. I took photos with the standard edition then a month or two later I ended up buying the deluxe edition. The standard edition I have is sun-damaged to some extent, which you’ll see on some photos. I ended up retaking a good chunk of the comparison photos with the deluxe figure, but there will be a mix.

Pricing

MSRP (without tax): Standard: ¥3,800, Deluxe: ¥4,600
Price I paid for the official (inc shipping): £32.00
Price I paid for the bootleg (inc shipping): $16.94 (£14.05)

The official standard edition I bought from eBay, and the special edition from Suruga-ya. Both ended up around the same cost.

Box

Here we have the bootleg as it arrived:

Yup, padding and everything! That was a surprise. Usually bootleg sellers don’t particularly care what condition the box turns up in, but this one was well-protected for the tumultuous journey from China.

OK, now to discard the extra wrappings on the bootleg and get the deluxe edition box out:

A surprising amount of difference is instantly noticeable – no backdrop on the bootleg and the parts are packed in different positions. The face is in the official box but in a separate blister that’s not visible yet (we’ll see it later). For the official Haruyuki ball it is also in a separate blister for the official, whilst the bootleg has these parts integrated into the one blister. This difference can be explained via the official having two variants and the bootleg only one, so makes sense just to make one blister.
And yes, the Haruyuki ball was backwards in the bootleg box when I received it.
Looking at the top-left of the boxes, the bootleg doesn’t have the Wave logo or the Sunrise authenticity sticker.
They did bootleg the special edition sticker, but the print isn’t as dark.

Sides:

No particularly notable differences here. The bootleg has worse print quality, but otherwise thse match up.

Back:

Some more logo removal here at the bottom – Wave, copyrights, the head joint advertisement and the Beach Queens logo. The bootleg has the neck joint so there wasn’t any need to remove that, but guess they felt a bit overenthusiastic when removing the logo-age.
Again, poor print quality so Kuroyukihime looks a bit sunburnt and grainy on the bootleg box.

Top:

The Beach Queens logo has been removed, and the Accel World logo is bluer.

Bottom:
Standard edition:

Deluxe edition:

The bootleg has removed the Wave logo – no surprises there. However, more surprisingly to me, they have replaced the barcode with a made-up one (63/635 aren’t valid GS1 country codes. China is 690-699, which is why many of these fake barcodes start with a 6).
With the officials, looks like Wave produced the same outer boxes for both editions, but put a barcode sticker on the deluxe to give it its own barcode.
Looking to the top edge, we see the official box has overprint to ensure that the image on the front goes to the bottom of the fold whilst the bootleg doesn’t.

Flap:

Yep, the bootleggers removed this mention of Wave too

Insides:

The window glue looks pretty nasty on the bootleg. We also lack the purple liner the official boxes have.

Telling these boxes apart is pretty easy – the lack of Wave and Beach Queens logos is a dead giveaway for the bootleg. The lack of backdrop and different positioning for the accessories are also clear differences if familiar with what it should look like.

Blister:
Standard:

Deluxe:

In the deluxe version, we can see where the face is taped to the corner of the blister in its own blister.
In both photos, we can see the official figures come with two base pieces and the bootleg only came with the one.

Accessories

Haruyuki front:

The bootleg ball is darker in colour, and the print quality isn’t as good. They’ve also coloured the insides of his ears, which is an interesting choice.
The casting of the ears on the bootleg is poor, and his left ear is bent forward, making it look an odd shape in this photo.

Bottom:

Both have a bumhole: check. Looking at the bootleg trotters, the inner paint is escaping the outline.

Side:

Both have pretty ugly seams. The halves of the bootleg don’t match in colour.

Back:

They both have a squiggly tail, but again, the bootleg’s has some poor casting leaving the final product lumpy.
Looking at the light reflections the bootleg is a rougher finish compared to the official.
From this angle we can see the ears are all pointy-shaped, but the bootleg’s are dirty, not as pointy and have excess plastic still attached.

Is this ball a replacement for the official? Sort of. It’s not the worst thing ever, but giving it a close look, the flaws do show.

Bonus face:

The “embarrassed” lines on the bootleg are much more distinct versus the official. And we have the good ol’ sweaty bootleg finish. The skin colours are noticeably different between the two when side-by-side.
Looking at the ears, the bootleg’s lack paint detail and are dirty, probably with paint.

Top of the face:

From this angle, the difference in skin colour is very apparent. The bootleg hasn’t been cast as well, so the straight edges look a bit munched-up.

Base

The Beach Queens are relatively boring in this regard and all come with a hexagon of sand. Still, a better base than other hexagonal bases that I could mention.

Unpacking the bases:

The official ones come separately bagged whilst the bootleg was just shoved into the blister.
The white strip with the official bases is a double-sided sticky strip to attach the bases together, if you so wish to.

With the bootleg they seem to have done a switcharoo with the bagging:

Yeah, the figure was bagged, but not the base.

Top:

They are noticeably a different shade when side by side. In person, the difference between the bases is more apparent as the top layer of the base is thinner and a bit bald in spots which shows up from certain angles.

Photo showing some of the balder spots:

It doesn’t look too bad on its own, but next to the official, the defects do show up.

Bottom:

Interestingly, they’ve kept the copyrights on the base piece. We’ve also got some extra artefacts from the moulding process.

The base isn’t the greatest indicator of a bootleg, though if you have a clear photo of the bottom you can count the number of injection points – official has two and bootleg has 6.
Overall the bootleg is at a big disadvantage – half the base is missing! So if an unboxed version of her only comes with one base piece, I’d be suspicious.

Let’s see what having only half the base looks like:

Yeah, she doesn’t look right only sitting on one base piece…

Figure Spin-around

Looking at the figure’s skin tone, we can see the bootleg is a much more reddish tone, whilst the official has a more yellowy base. The hair is noticeably worse and the bikini top is looking a little odd.

Figure close-ups

Face:

Mmm, starting off strong… The bootleg hair, so blobby. The stray hairs are like chunky noodles or something, and no fine points on the lower hair either.
Looking at the face itself, the print on the bootleg is actually mostly decent, but the mouth is done in that overly orangey-red that bootlegs like to use. The face sculpt itself has lost some definition, which makes the mouth and nose look odd. Under her chin we can see some excess plastic.

Top of the head:

Oof, the bootleg seams are rough up here. The bootleg fringe won’t peg fully into the back of the hair, leaving an unsightly gap. We can also see the hair parts don’t stick out correctly either.

Side of the head:

Wow, these hair pieces were NOT put together well on the bootleg. This shows why the hairpiece won’t assemble correctly on the bootleg – the added hair strands stick out, preventing it from pushing back.

Chest and stomach:

The whole terribleness of the bootleg bikini top is on full display here – the original has a nice frilly edge whilst the bootleg has… grey slop. Even from further away, it’s noticeably awful and was one of the first things I noticed when unboxing it. As well as the poor grey paint, the jewel detail isn’t painted on the bootleg either.
Moving to the stomach, the bootleg has some shading but not as distinctive as the official. The casting seems to be fine around the torso area.

Decapitated:

Urgh, I think the bootleg’s bikini is fusing with it… Not a good look. We also have a lot of paint transfer from the hair on he shoulders and arms.

Back:

An attempt was made to paint the strings on the bikini top. It’s not even connected to the main string, which makes it look like some strange symbol on her back.
We do actually have some frill on the bootleg bikini bottoms, which is a surprise seeing as how the top turned out so badly.

Bikini bottoms:

Up close, the painting on the official is a bit messy, but the bootleg takes the cake. Looks like they entirely forgot about the trim on this side, and just quickly slopped the dark purple paint across here.
We can see the bootleg bikini ties also lie flatter against her legs vs the official.

Closer look at the tie:

Yep, bootleg is looking noodlier. We’ve also got a large chunk of plastic? Paint? It’s also been mounted at a more gravity-defying angle. The knot has also nearly been lost.

Hands:

Shudder… the bootleg is looking decidedly mutant. Both bootleg hands the fingers have partially fused together, and the nail polish has been painted poorly. The right hand (lower photo) is especially ugly to look at for me. Yuck.

Legs:

Fortunately the feet aren’t as bad as the hands, but we still have some toe fusion going on, making the bootleg’s toes smaller. Again, the nail polish is poorly applied here on the bootleg.

Feet from the other side:

Ngl, the bootleg’s left foot is freaking me out a bit. No points for the bootleg feet.

Underneath:

Not really anything extra here to observe, but we can see how the fingers are closed together on the bootleg. We can also see the way the light shines off of the bootleg skin.

Time for some face swapping. Let’s start by taking off the hair:

Not too much difference here, apart from the poor fitting of the bootleg parts.

Hair:

The back of the official plugs manages to be a bit rougher than the bootleg’s.
Interestingly on the bootleg, we can see the injection hole for the official, but they made a different injection hole to use instead on the middle plug part.

Bootleg and official with bootleg angry face:

The bootleg face works with both figures, however due to the skin colour difference, it’s noticeably not a match on the official.

Conclusion

So there we have it, a comparison using three Kuroyukihimes:

Comparing the thee from the front:

The leftmost is my normal edition, and comparing it to the DX one in the middle, I’m fairly sure the normal edition one I have has had sun damage. She has removable hair like the DX, so you could use the spare parts to “upgrade” her to the DX… but should you? My vote is no – the face won’t look right if that’s what you want. The ball is passable if you want that, but you’d have to be displaying it at a bit of a distance so the weirdnesses with it doesn’t show.
In terms of telling them apart, the bikini and the hair are massive clues. If in shot, the mutated hands are also a sign of the bootleg.

Would I recommend this bootleg as a bootleg? No. The bikini paint and hair are horrible. Even at a distance, she’s gonna look a little weird, and she’s probably going to be doing some weird hand-hovering due to the misshapen hands. If you want to use the sand base, you’re also shorted here – you don’t get two pieces (or at least I didn’t) – so if all the bootlegs are like this you’d have to buy two, which pretty much negates any saving from buying bootleg. When the officials come up for sale, they’re not that expensive. As of time of writing, they aren’t super-available but I found both for around the ¥3-4k mark. So can’t really justify getting the bootleg – I’d say getting the standard edition is better than getting the bootleg.

In conclusion, the bootleg is reasonably easy to tell apart – from both the box, the figure and the parts. And I wouldn’t recommend wasting your money on it.