Also there seems to be rays of light bursting from behind and around him, but he doesn't seem to interact with the light rays.  He kind of looks "pasted" into the scene.  His feet are quite shadowed when the light behind him in that area seems quite bright.

It is a great concept and I love the idea of it. 

Check out the tutorials here, at DAZ and RDNA, maybe you can find some that will help you with some post work effects.  Also, do a www.google.ca search for tutorials for whatever graphic program you are using.  Search by effect/technique and program.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi