Might look hard to see on its own but in the context of the artist's media tab on twitter you can clearly see they are an amateur and learning artist as recently as this spring and then they had at least one post where they stated it was AI, then started putting out "better" (stronger anatomy and color/shading etc) stuff with obvious AI artifacts and now we're here. Sad to see that stuff happen

I got fooled, sorry. I simply saw some actual sketchwork in their media and assumed. I should definitely have scrutinized this more. The "artist" already deleted the image and posted an extremely similar one.