I don't think this is AI art. Perhaps the background, but if you zoom in on particular parts of the image and are a digital artist yourself you can very clearly see the "brush" strokes. The hand especially gives it away, cos I would be really impressed if AI could replicate the look of amateur smudge-and-airbrush-tool use. The crosshatching in the sweater is also too sloppy to be a robot. AI art is typically super smooth and blended, and any lines are really crisp until encountering a spliced area, where the line again just becomes super blended out. Handmade art can achieve the same look, but AI can't achieve the same look as handmade.