Ooh, some nice effects on that.
Somethings are bothering me though:
It's VERY contrasted, I like the lighting, but it's too dark in some places.
The text is bleh, I don't like the lines that go horizontally across it.
His hair looks slightly over sharpened.
It's a great sig, and I like the effects, but some aspects seem a bit off.
Good luck in your battle.