But I don't follow on one point.
"Was enhanced to make the existing paint look thicker"
IMO acceptable, so long as the "existing" paint actually "existed" in the original RAW file.
If the paint did not "exist" in the original RAW file then that is an "addition" and not acceptable. (Police guidlines)
Sorry to go on .. but I've spent many hours debating as to what digital photography actually is. And I still don't know :)
Maybe another thread ??