Alright, I understand that this might not be 100% proof that this person is using AI. But I'm pretty confident in this, which is why I'm posting here for more opinions. Sorry about the wall of text in advance.
I feel like asanagi shion is pretty obviously tracing over AI for all of their recent work, with the rendering either being painted over or heavily referenced from AI as well. Their works definitely have an AI feel just from a glance, but I know that saying something just "looks like AI' isn't a good enough argument, so here's some more reasoning:
- Their style had a sudden improvement in anatomy about 2 years ago and a very sudden improvement in rendering shortly after, and they've been putting out tons of art that all happens to look like the generic, glossy stable diffusion style since.
- Almost all of their art is the same resolution (1024x1408, which is also divisible by 8) with only occassional changes to the height. Also, the poses, perspective, and framing of all of their art are extremely similar to each other, with some being exactly the same. This isn't inherently a giveaway (real artists that reuse poses definitely exist) but all of the poses and compositions are very similar to those found in AI works. (ai-generated paizuri status:deleted to demonstrate, hey, post #7612019 even has the exact same background found in a lot of asanagi shion's works!)
- The rendering/art of the eyes is often considerably lesser quality compared to the rest of the rendering, which is likely because the eyes are being redrawn entirely instead of just painted over.
- There's an absolutely absurd amount of this art that's been pumped out over the last two years. Extremely prolific artists aren't unheard of, but they often have simpler or sketchier artstyles that allow them to work more quickly. Posting such highly-rendered art at the pace they do is very strange.
However, this artist seems to do a decent job of painting over obvious AI artifacts or mistakes, so I can't find much that would "definitively" prove that they're using AI. (I'd imagine you could probably find some if you really looked through their posts... but I've already looked through and analyzed way too much samey paizuri art so that I could write this out, and I don't really feel like looking at more.)
Would this be enough to label them as ai-assisted?