The way you used the light makes the guy look very dominative. :> It's almost throne like! That's very good, man. I personally can't see anything that would be wrong in the picture. Just make sure the left and right corners don't end up too empty in contrast with the light lines in the center.
~Bump~ Cmon people, I need some CnC T_T I'm gonna take my sigs and go somewhere else since they're always so lonely ;.; Thanks for the only CnC cocohints ^-^ Though the only thing I don't really like about both versions is the smudging at both sides of the sig...they look kinda sloppy =\
Don't put your sigs on lighten like that, it kinda looks funky. Unless, you really wanted it like that, the like, don't change it... or do, if you really feel like it. The colors and effects all match, come together, and flow, so that's good. I'd say just blir the sedges and a few other places for depth, and maybe shade it a lil.
The entire thing looks kinda foggy. Other than that, I really don't know. It just looks fine to me. Maybe add some text...