Better, but not too dark. Take color from shadow of the face and paint him this shadow.
And maybe give you characters some boots? ))
Of course it's you fantasy, for some abstract is difficult give adequate criticism. Now I am give just a my vision YOU fantasy, maybe it's not right vision for you! ))) Maybe this is enough for that picture, or maybe not? It's only you decision.
You have graphical image, what objective you pursue? Do this more realistic, more anatomic, cartoon or just express you idea? For just idea - I say "It's nice and funny picture". If you want more precise comments, you must definite you ask )))
Sorry for reasoning, just paint more and put it here!