This is one of my favorites from what I’ve done with blender. Not sure what else to say about it but C&C are welcome 
The texture tiles and repeats but nice anyway.
Try a bit bigger stone texture.
very nice pic,lightning is nice,the wall texture its ok but needs some bump maps.
Apply sum bump mapping onot the bricks
Reminds me of this one:
http://www.3dluvr.com/carles/Daylight.htm
Did you take that tutorial?
My favorite of his is this:
Actually Bijin I did use that tutorial to create the human in this project, but the rest was already designed in my head. I know its kinda weird that they are alike but that wasent my inspiration.