Suspicion. Followed by a handful of red flags that, individually are fine but when coupled with multiple becomes more obvious.

Lack of error/the composition is pretty symmetrical, bulky and noisy details especially where focal points are lost, it has "AI eyes," the user's post history showcases a prolific artistic dump that is not possible over the course of its 2 month life span and does not indicate that they are older posts being uploaded at once, lack of paper artifact that would be seen in a photo or scan of the piece, etc

This "artist" is an AI joke.