Yes yes, CnC time, the background first of all to me looks more sharpened then the render, which is kind of odd, and takes away from the nice depth that had been created on the right hand side, something that needs to be addressed to quickly. The colours are aesthetical pleasing to look at which is good. The sort of lightning streak on the right is kind of random, i don't really think it adds to the piece as much as the other one (Placement issues with that right hand streak) The render itself seems to be too dark, with no real lighting either, he doesn't really fit into the piece when i look at it. Also there is no clear focal, which is kind of annoying, as my eyes are just darting all over the piece. Text needs to be worked on a lot, it's too distracting atm.
Just things you need to improve on, i like it though.