So its my first attempt at making robotic head (I'm still new).
I always liked tribals and etc, but i was thinkinh "Its 2013 NEED TO TRY SOMETHING NEW!", and i looked on forums like people making robotic heads,sets so i decide to try my own and there's a wips of it:

P.S Please don't Judge me with comments like "this looks shit" or other similar comments.

It's ok, but I think you should add more lines just to add that robotic feeling, or somethin' like that.