His paintings are pretty good for an amateur. I don’t think anyone is claiming he’s some kind of great fine artist. Bush himself would probably laugh out loud at a comparison with Hopper.
meh to me they look too much like paint by numbers- seriously- I don’t mind amateurish works, but bush’s seem to have that paint by numbers look and feel to them- other than that- like i said- they do grow on a person- they aren’t horrible- but they do show a real lack of expertise- in several areas- color, composition, anatomy, shading, tones, light. etc
He does have some qualities in his work that are reminiscent of hopper, slightly-
When you put out a coffee table book for $250, you get evaluated as a professional, not an amateur. If he were submitting his paintings to the local county fair, he wouldn't win a ribbon, and they give about half the paintings a ribbon.
Here's a link to another artist's work (deviant art, so link only, portrait of young girl):
https://www.deviantart.com/dora-alis/art/Prosperity-Portrait-4-849075874
As a person who was an art major, I've spent the last forty years watching crap paintings get promoted while incredibly talented people labor in obscurity, so I'm a little touchy about the subject.