I don't think there is a lot more then darth, and i don't see why you try say that to people.
To me it looks like, you've slapped the render on, you've got a large soft brush, gone around the render with it (could be smudging, but if soo you are beign to basic, and aren't using shape dynamics) then you put a single abstract brush on it, then cut off the background, took what should have been on the left, and put it on the right, and vice versa. Then just added a gradient map. Then some slight simple lighting. Thats all it looks like, and i bet i could replicate it by doing that.
Slight depth on it, which is created by the stock you used. You haven't attempted to add any extra depth which could be easily added by a slight gaussian blur to the background. Lighting needs work on, this sig needs realism added, if the lighting is comming from top right of his head, then the left side of his face wouldn't be lightened, as bright as it is, you need to move onto more advanced techniques.
He Who Dares Wins And i'll die to win, cause i'm born to lose Fucking Civilian