I don't know if you're ready to consider possible add-ons to the scene (perhaps for later), but here's a few suggestions; Light-fixture with broken or dangling morph for over the door. Defaced sign or plaque beside door with a doorbell-button or broken intercom. Broken, rusty shopping cart with & without bulging trashbag contents. Sidewalk scaffolding of pipes & broken planks for attempts at outside building maintenance. Coal-delivery access door at base of wall. Manhole Cover for street or sidewalk. Broken utility access box with electric meter or water cutoff valves inside. Grill-covered sewer drain at edge of curb in street. Old produce boxes and crates stacked. Hydrant for curb. Old-style windowsill air conditioner. Faded/torn/overlapping event promotional banners & signs taped to wall. Wall-mounted PayPhone station with torn-off handset morph. Stacks & heaps of garbage bags for garbage strike..... Etc, etc, etc..... Cheers!