Prepotente head canon
So all the art, (official and fanart) show prepotente a lot differently than he appears in my head, and I'll tell you how I got there.
In the book he's described as big, and when he hugs Carl at first, he shoves Carl's head into his chest. Carl is 6'3, that puts prepotente at at least 6'6, maybe even up to 7'
I've been imagining this guy built like a ninja turtles villlian ala Bebop and Rock steady. The fan art shows him wearing wizards robes and being, well... definitely not a roided out 90's cartoon like I'd been envisioning. And as we saw when Carl got a base strength over 100, he should be swole. Yet he's portrayed as a slimmer gentlegoat, which made my brain short circuit when I realized that the goat on the cover was supposed to be him.
I also feel like imagining him as a 6'6+ tall, buff, bodybuilder sized guy adds so much to the humor of everything. Angling his muzzle down to scream in Carl's ear as he snuggles him into his chest, his smarty pants description of everything, and I don't know if y'all have met real bodybuilder guys but holy smokes Prepotente would fit right in with most of them, they're lifting nerds, their special interest is building muscle. (At least the ones I've lifted with)
I wish I had any iota of drawing talent or skill so I could flood the market with jacked prepotente art where he's just making baphomet look like he needs to up his protein content.