Drawn Avatar (what should I improve on?)

[EnchantBook]

This is the avatar:


What should I focus on improving?
Also, does anyone have a trick on how to do hair? tried for a good 20m before giving up

EDIT: this is the first time I really tried to draw something nice

 

[cts]

honestly, I think it looks really good the way it is. the hair will be the tough part, good luck to you.

 

[X8.]

looks like a cancer patient, pls add hair