[edit; the damn thing is animated, so you're not gonna see what it looks like thumbnailed. Just thought I'd clear that up.]
My deviant art ID. As said, 100% photoshop. No other programs or external filters.
For people who really want to know how it's done, there's a FAQ on it, here [link]
. You can also download some *.PSD's from it, too.
Please, if you have any questions, refer to the FAQ first. That's where it's for. I'm glad to help, but I get a lot of similiar questions about it.