Pros: cut out is great, background matches with render.
Cons: background is a real picture kinda throwing you off of game into real life, the blur effect on his head (although innovative) doesn't look to good and adds a bit of white to the spray around his head.
Improvements: get rid of the blur, make the background more game like. maybe by applying a filter or finding an actual background from a game like Crysis or even Turok.
Notes: its great to see something from you after so long :D hope your back for good now.