lets get this going:
1)The tag looks flat , bec of poor blending and poor lighting
2)Remove the bottom right text , the main text doesnt look any better but if u removed it the sig will be totally empty
3)The Tag is already empty a fractal with a render
4)your render shouldnt fill one side and leave the other as empty as that
5)the blur u did on the left shoulder (right side) totally ruined the overall looking for the render.
6)the fractal on the right would have been better if it suited the flow of the render (which is kinda poor)
7)suggestion : try to free transform the render > flip horizontally >scale down a lil bit then make the fractals match his hand flow which i think will be diagonally from bottom right to top left