.... That's some cool lookin shhhhtuff. Colors are nice, I have no good CnC. But I can rate that an 8.5/10
The flow is good, but it's a little... Plain. Maybe smudge him around a bit? The text needs some major help, and you should sharpen some more of it. Good job, though.
Keh, in my opinion, the text should be redone completely. Having it there in the middle of the thing is just wierd, specially with that light. I mean, with the light, I know what you were trying to do n all, but it just looks funny I guess. :\ ... lol rant-ish ... lol still 8.5/10
I agree with Misty, the flow needs some smudging, too, sharpen the render and then fade sharpen to not make it too strong, too, some parts are way too... Dark, try to use the dodge tool. Good Job thought.