Very nice, but I think using a dark shade of brown/purple/indigo would work a lot better than black. Black tends to contrast unpleasantly and you will never find pure black on such an objectin the natural world. You've nailed the anatomy of it though, and all the other colours and textures are really lovely.

Indeed, it's a skull!

Pitch black outlines spoils a good impression a little bit.

Awesomeness...

There is something odd about the black lines on the skull, perhaps use a dark brown/purple instead of a pure black?

I.E; http://img845.imageshack.us/img845/3759/skullededit.gif

Cool looking.  Did you use a reference?

wow

man u cooool) 

very cool :)