At this point, I see the size of your sigs as something that hurts them a lot. Try 400X100 AT THE MOST. The text is iffy on this one and the render quality is kinda bad.
Pic is low quality, and has a VERY bad effect.You have the pic a little too small, and too much to the left.BG is DEFINATELY not your best.You always seem to do the same thing for text, and it is never good.(sorry)Definately not your best man...
I dunno, there is something about it that doesn't draw interest. Maybe it's the background or the horrible pic quality...I would just keep working and hopefully you saved the PSD.