Overall, it's pretty good. I like the effect that the gradient overlay on the Japanese text adds. I also like the "glowing" effect that runs through the whole signature. I can't make out what the render is. Is it someone's back?
This is indeedishly tasty, put your name under the render, and make it arial, a big size, and make the last letter kind-of cut-off by the render since it'll be under it. And put it either on low ocapicty or overlay or a mix of the two.