Hmm, just a couple things. The top part of MCs head where it comes up into the border seems kind of weird. The text it kind of awkward, and for some reason it seems like the light source in the bottom-right should be brighter. I still like it, though, there's a lot of really cool things you did here.
Everything looks great, except for the part where he is on top of the border. It looks like you just slapped a render on top after you did the background. I know that's not what you did, but that's what it looks like. Everything else I like. Good job!!