This is my favorite kind of fucked up looking cat painting. It's not nearly as bad as some, but it makes me laugh. Goya was really like, "here are portraits of royalty, here's some real violent shit, aaaand here a couple of cats throwing down."
Top left one is just stretching. I've seen cats look exactly like that when stretching, same face and all, no stylisation required, other than what's already naturally built-in due to them being cats.
Top right one is somewhat stylised, but mostly is just high on catnip.