looks pretty good :)
"I'd like to have made it more cartoony, but I dunno enough about Quixel to make that happen."
not in software but in how you do it. less detail and color variations/granules, less reliefs, more flats. would need to be drawn that way though, playing around with just effects on the finished texture might achieve the goal but i don't know how exactly to tell you, i'd have to play around with it for myself