Well I wanted the picture to have an old filth feel. The biggest change I made was to desaturate the whole thing except for the laughing girls on the billboard. The cross-hatching "kind" of simulated rain...I love this picture so much. Very powerful.
It looks like you used a filter in photoshop to put some diagonal cross-hatching in. (To my noob eyes, anyways.) Were you just experimenting with filters at the time or was there something specific about this picture that you wanted to emphasize?