Thanks for the nice words man, I really appreciate it!
Yeah, many of my favourite cartoonists draw (or drew) the mouth placed like that on the simplified head anatomy, or just with a ball shape as the head, I really love it so I'm chasing a similar (but own) style like that when I'm drawing non-specific faces. It's really hard to decide what to go for, for example Edmond Kiraz draws really long chins, and that looks great too.