Sorry for kind of bumping an oldish thread, but I wanted to post my result:
I used the same background stock but a different render and added a few things. I learned how to use C4D's and Photoshop in general on this sig, so thanks for the easier tutorial.
I know I distorted the render a bit too much and it doesn't flow too well and the text is bad, but it's my second signature in PS, so... :P