First ever post on DA (And I've been a member for 3 years now apparently), but I felt this deserved a special comment.
I just started using Photoshop, so this is maybe my 4th or 5th signature, and sadly I had to use all default brushes. The outcome was amazing though, and this tutorial is definately one of my favorites, if not my #1. Amazing work! Hopefully one of these times I'll be able to pull off that clean look you did
idk what exactly c4d i used because i think it was from a pack, but look here on DA you shall find some nice ones.
Sorry for forgetting, my c4d layers are on screen. And i dont really know how i can help you with the ripple problem, you set it on the highest options and on lighten? Any way dont forget that because of the erasing part it can go out very different, but if you want you can send me a link to the sig (even if not finished) and maybe i will understand the problem.