Everything flows with that sig, the background is nice, the Text is great, and the Render is beautiful, great job.
Lacks some depth to it. Other then that, quite an awesome piece of work. Maybe.....resize it, though?
I like the bg, render choice, the text doesn't fit as well as I'd like, but thats just an opinion. overall, excellent job. I was thinking about using that render in a sig, now I have a style to shoot for ^_^
as said before i like it all, i like some of the grungy look, evern if its not grunge, and the brightness is notgd man i would change it and it would look much better