While quick, this is still a nice concept image of how people might live in the shadows of some epic future city...or are living in the epic urban areas of today. Thanks for sharing.
Flatten image, go to Channels and you have RGB, Blue, Red and Green channels - select one of them, take "move tool" and nudge it a few pixels. You can google for "chromatic abberation in photoshop" for more details
City Marketin #Psycho-Logics, by `MacRebisz