Nice, this is one of the most interessting sigs i've seen from you man. I like the colours and the lighting on the render. Good job man
The idea of the text is good, so i think you should keep it like that, but with another font. Plain arial would be good.
Considerably well, but not a big fan of the text. Maybe it's me, but I'm not sure if I like this. Seems a bit more focused on text, rather then the Render & background. I don't like the white borders you had, but, that was a good render you used.