LOL. *no topaz* I really like this sig good job! <3 It misses something in my opinion but I don't know what.. maybe a couple more effects. But it's still very nice.
The quality of the render and BG are really different which kinda throws the realism part off. Not so fond of the colors. Blending needs some work. Nice scene on the left though. The text is good but maybe some different placement?