Based off of the art of Marvel: Civil War, this is Captain America. He is the super rebel up against the govt. registered Iron Man.
I'm not an affiliate of Marvel but I think anyone should pick up these issues. Great artwork.
As for the piece. The process is as follows:
1. Z-sphere modelling
2. Drop model to the canvas (Captain America)
3. Wing modelling
4. draw wing models on dropped Captain America.
5. Bake layer to eliminate pixols.
6. RGB Paint over baked data completely(flat render).