get ready bud :
1)i see its for SOTW .. the theme is Fantasy this is Sci-Fi
2)Lighting:its obviously up from the sky , so why the back of his head is lightened?
3)Focal: not good , blur the surroundings a lil bit and sharpen the dude more
4)Fractals/C4Ds :the cyan ones are ugly the red ones to the left of the crysis dude are fine but the ones at the bottom right aren't
5)extras: the creature to the right got some white sprays , remove them
6)color : too bright for the scene u need warmer colors , orange maybe , add the orange/blue gradient and try different blending options
7)Blending: amazing u cant tell if its a stock or gathered elements , although i know its a stock :P