Goku

http://i974.photobucket.com/albums/a..._josh/Goku.png

C&C please

I think this signature has the best depth that I've ever done. (don't think that makes sense but you know what I'm talking about XD)

I'd blur his hand a little more to really put the focus on the face. I'd also recommend having the text flow along the outside of the arm, instead of just horizontally like that. It would flow better, instead of breaking off to the side.
Cool effects, and yeah your depth is good, but it would be much nicer if you blurred that hand, I'm thinking. =p

I think his face is a little over sharpened...

it looks like he has like 8 fingers on his right hand o_0 like the style though

As Zen said, try blurring the hand to add some more focus to him (its gohan by the way, not goku :p). Also, either change the text or take it off because it doesn't work for me sorry. Nice lighting though, keep at it. :)

nice effects, i can see where u tried to make it look like hes shootin somethin out of his hand allthough its on his fingers lol.
also its blended pretty well

however, dont rely on gradient maps to give the sig color, use your own creativity for that, use colors from the render, which is kind of choppy on some parts n the text isnt too good

overall pretty good job, just touch up those areas on the next sig