Location: See that guy over in the window, with the binoculars?
I like it, my advice for abstract sigs is though would be to play with gradients between layers set to diffrent blending types and oppacities (very subtle) it works great to add some nifty lighting effects especially if you go outside of just your standard gradient, dont neglect orange, yellow orange, or the purple and orange, play around but Im personally a big advocate of gradients as they can really help to blend things together. An example on this one I would put a light black to transparent gradient starting with black on the left and fading over at an angle to give a shawow effect and help go with the rays of ligh coming from the right.
"If you get hit and it hurts hit him back you not knocked out yet."-Joe Doerksen