Could you please upload a png one? jpg freaks with colors and details. =P Aanyway, I'm really liking the overall look of the sig. I would just remove the shadow of the text, blend more the right half of the render with the bg, and sharpen a little bit the left half. Would also play a bit with the colors, but it may be just me haha.
I'd like it if the text is a little brighter, or slightly bigger or something, I almost missed it when I glanced at the work, try blending the background a bit more as well.
