it's pretty sweet. I have suggestions though. I'd presently rate it at the low end of a 4, but I think it would be easy to make it better/awesome so I'm gonna wait before I vote.
1. The non-teamcolored bits of the armorshould either lose the orange, or you should put a smallish yellow filter over the teamcolored bits.
2.You should desaturate all the armor a bit and make it more gray-ish. so it doesn't clash against the face as much.
3. The face needs a bit more contrast between light and dark.
4. I'd personally change the hair to black to make it contrast better, or perhaps some kind of grey. but short of that, make more levels of "white" so that it has more depth and more clearly contrasts against the face.
5. This is just something I think would be cool

o a bit of a buffy vampires thing with his forehead like this
http://images.buycostumes.com/mgen/merchandiser/4601.jpg