I'm trying to think if i've seen that image from anywhere. It looks slightly familiar, but on second thought, I can't really put my finger on where i've seen it. Perhaps a mere close relationship?
Anyways, the avatar feels a little.. complex. Redundant almost since it re-states your username. I like the lightning effect in the background, although it isn't really the most smooth blend either.
All in all, it's a decent signature. Better than most on the forums. It's an avatar of who you are. Not just some meme or other image there for the 'trolls'
Ps. Screw your low quality standards on this thread, i'm tired, so i'm actually going to give a legit opinion.