@EPM: The blue part over Electivire isn't helping. Remember, Electivire is the focal point, so you don't really want to have anything covering it. Covering the focal point distracts the viewer from the main point of the sig. Also, there isn't any flow and lighting. The C4D's make the sig go to the left and to the right, with no real direction. Without any lighting, the sig seems kind of flat and unfinished.
To fix these, use black and white soft brushes set on Soft Light for the lighting. And then, pick a direction that works well the render sig and stick to it.
EDIT: Oh, and you didn't blend Electivire too well. Adding the blue part over Electivire doesn't help with blending.