Wow, very unique! Its a wierd fractal style effect, with an out of place render - but it works well! The effects work well, and they go with the flow, and the colours dont clash - they suit each other fine and the brightnes of the middle contrasts with the edges/outsides. Only thing wrong is the renders blend. I think you need to turn down the opacity, just 5-20% and maybe feather the edges a bit. I also think a sharpen would look nice.
erase the stuff on his face, maybe work on the flow of the sig its self..... but i love the lighting good job
flow, compo, and lighting are all off in this one. The effects at the top are rough. Lots of negative space too :/