I personally think it's a bit too plain. More c4ds / different blending options would make it better.
Sorry but the lighting is terrible. I'm not really liking anything about this tag tbh. Keep working though.
You made the c4d right? The c4d looks nice. ^^ But I think you got the lighting wrong. It seems like the light, according to the c4d, is coming from the left, right and from behind, so I don't know why there's a giant shadow on the guy. I would also use some form of adjustment layer with a clipping mask to alter the guy's color to blend with the c4d.