Toribash
When I saw the sides I was like "WOA."
Then I saw the face and the back and went ":|"

Yeah, that's pretty much it.
The eyes look too small and that mouth thingie is just... weird.
Maybe fix them.
Again, the sides are awesome.
[Addicted]
The back for me is just horrible,I may as well remake(or remake a new head),but I thought the face was pretty original ,Again I suck a lot with mapping.
Just take away those drop-shadows on the back and redo the face.
That's pretty much it.
I think you can do that :3
[Addicted]