Looks nice! At first glance it's a little bit pristine. I know you said you're trying to avoid the grimy-urban look but your textures could maybe benefit from a bit more grunge to add detail and break up repetition. If the alley is overgrown I'm assuming the buildings and floor aren't cleaned regularly. The only other…
Definitely nice work so far, I think you have some of the broad strokes in place and as previously mentioned once you clean up some of the textures and lighting artifacts it will start reading really nicely. A small note on the trees the shadowed one looks quite dark which may simply be a lighting problem, but there are…