There's no flow, no lighting, the background doesn't complement the render (color-wise), the render is low quality, the background, and the sig is empty and uneventful. Oh, and stop using that glow on your renders.
You've done better before. However, I would like to see you successfully make a good signature using this render because it would be very interesting given the pose of the Sharpedo.
@Josh:
Epic. Sweet new style, KIU.