Ton's of smudge, I can't really make out what it is.

indeed alot of smudge :/

and pretty much all the mapping is done by the polar coordinates filter

It's pretty interesting. It looks like some sort of metalic creature imo.

The side is very ddetailed, and the metal effect is near perfect imo, but the back and front art kinda bland compared to it. The eyes are very good for this head mainly because of the almost sci-fi creature feel.

Overall the head is very nice, just needs more definition as to what the hell it is :P

to be honest, i don't even know what the hell is it