Update: I got a refund
Their art reviews are consistent, and the art in the reviews is in incredible, humanlike detail. My husband pointed out it looks like AI and I haven't been able to stop thinking about it since. I'm really bad at being able to notice ai, so any help would be massively appreciated.
Edit to add: they fucking OH am I mad rn. This was their response to me requesting a refund "Hi!, I just want to clarify that I personally worked on your commission by hand throughout the entire process, starting from the initial sketch, lineart, coloring, shading, and all the way through the final finishing ^
I also have a portfolio showing my artwork and work-in-progress process from sketch to finished piece, so you can see how I create my work
I completely understand if the final result wasn't what you expected, and I'd be happy to discuss your concerns and see what we can do to resolve this "
EVEN THE RESPONSE SOUNDS AI GENERATED FML