This is a great background but it doesn't fit with the render in my opinion. The colors work but the styles contradict each other. If you looked around, found another render, and blended it in, the sig could be amazing. Right now it's at a 7/10
The background doesn't really flow with the render. Look's like you took an old background and changed color and slapped it together with that render with text.
Just doesn't flow correctly.
Try working on the flow of it then it might get a better rating. Until then,
7/10
EDIT: rating on second...
3/10 it looks so ... I don't want to say horrible but.. It does.. Nothing flows, looks like you added stuff randomly and called it a sig.
I'll rate the 2nd one now. Same thing as the 1st one background doesn't go with render well. Take off the lines all across. I don't really like your new style either. 6/10