Kevin is badass.
indeed

@Kevin
thank you very much. your edit is a great inspiration. i hope i can manage to create something similar with a slightly bigger face.
Anyway, if you're going all out for chibli, you might wanna consider look at sprite from the SNES RPG like Final Fantasy VI or Dragon Quest series. They have giant head which you gives you enough space to draw an expression, and the body is expressive enough.
well i think i have to clarify myself. i don't like chibi figures that much (i like them in JRPGs but not in western games -> that brings me to an idea: maybe i will take a look at secret of evermore). i already used a chrono trigger character as inspiration

. i could not imagine a figure (as small as possible) that can show emotions without a chibi look. that is why i started this thread.
edit:
mmh soe sprites look very similar to chrono trigger...