dude, the chopped of head is too little.. add some more hair behind to make it round, and i suggest you listen to those advices, it would really rock if you make it darker and add more and stronger reflection becouse that comet is HUGE, and just take a lamp in a room for example.. or just little fire.. and see how much it lights up..
Keep it up, you have improved, lookin good.
~B_j0k3r0