Help W/ Sig

I don't really even know what I did. I kinda just played with it.
Suggestions?
I feel like I'm done, but I know I can improve.

TEMPTii wrote:See the white outline around the person? Destroy it. I'd usually use the blur tool around the edges that aren't the focal point.
Needs moar effects, like some sort of color explosion behind him and some of it leaking onto him or something.