OH MY. Love those colors, man. As for the pen tool effect, I think it's a bit overdone. Text and everything else is freakishly sexy. Also, frag grenades don't really go with electricity.
There, there to flow into his arm which leads to his head. So really there just there to help the sig flow towards the point. I appreciate the comment <3
I think the right side is a little too bright, and on my screen i cant see the text at all. In contrast, the left side seems too dark and his arm is holding my visions, not the head like you wanted. Its still pretty damn cool, but i think its cool in a way that wasnt your meaning.