first of all .. i had no idea we had a graphics discussion thread xD.
And as for the sig i don't know ... even tough i understand you want to create something that looks like one thing, the purple colors are to close to each other. You should use some variations
. I also think you could be a little more original on placing the text and graphic. Try making a signature that blends the texts with the flow of a graphic. The fade out of the graphic is also to strong. it makes the arm and hand of the girl look weird.
anyways hoops this helps you on your way xD