Damn ... this one deserves more then a "omg XD XD cool"
Extraction could use some work especially near the gun and her boots, I would use the burntool to correct it since it are highlights. Think you could fix the whole outline.?
There is a little noise in the wallpaper .. maybe a small gauss could make it look better.
maybe sig in the lower right corner ... question of taste I suppose ...
It's well balanced so I wouldn't touch the concept of it ..
Great job ...