I was toying with big heads at one point, like Henry Hatchet from Bonk’s Revenge. Very expressive, but maybe too chibi, too cute.
According to Wikipedia:
Chibi (ちび or チビ) is a Japanese slang word describing something short (a thing, an animal or a person). It comes from the verb 禿びる (chibiru), which means “to wear out and become shorter” (for the tip of something).
I like the current designs on the right. Not too cute!