Just love it. Nothing bad to say about the signature. Love the colors and the background. More then anything else I love the render you used. Overall you get 9/10 from me. Excellent job as usual.
Looks pretty neat, but the render should blend more with the background, and it wouldn't hurt if you made the colors a bit sharper. (Brightness/contrast layer)
Looks good! But something is missing like a good font? Try this one Quick Font Search: Maiandra GD - Fonts.com I personly love it ^^ By the way, if you like it, ill send it to you.