What do you think?

The repeating pattern on the side looks a tad bit weird. I think it would be better if there was more color or texture or something to add something more. And if possibly loosing the light on his face.

i like it, unique, good job.
but it needs color...yumm, colors.

I agree; colors would be nice for this.
Try color blotches/splotches/bubbles .. whatever you call em.

^ Agreed about the blotches thing. It might add that little bit more I think it's lacking