Too washed out. Makes it kinda boring. Amazing, there's flow O.O usually washed out, used-to-be vibrant colors just creates chaos. You'd have to thank the c4ds. =3
Other than that, maybe a light source? Focal point? Legible text? Get rid of the white space? Just some stuff to think about =D
Edit: Not the white space on this sig, but on your saber and judgment sigs, there's too much unused area on the sig.