It's got a nice blend to it, meh the lighting is too basic though. No real depth or perspective in this piece unfortunately. The shapes are nice, but the colours are monotone. Contrast in the piece is nice. If the shapes were all done with a pen tool, this would be an exceptional piece, but i'm guessing they aren't. The flow you present on the right of the sig, is nice, the left of the signature ruins it in my opinion.
Nice sig, just monotone in my opinion.