Ghost Cities

I did this as an experiment with some custom brushes in PS. Initially I was just coloring a little cityscape using the mixer brush, but I accidentally had Sample All Layers turned on, and I ended up with something to this effect as this on my Color layer. I liked the look of it, so I ran with that instead the regular, boring cityscape that was really just gonna be a test for myself. I got the city custom brushes from Peter Wallis. (~CloudDNA)

Feedback appreciated.