The word tumble-down popped into my head earlier, and I immediately envisioned long rows of worn, dilapidated houses much like you see in pictures of old oil boom-towns around here in Oklahoma. The image of the sun low in the sky, coloring all the bits and pieces that had managed to last, was pretty strong. I hope this conveys some of that.
Dull sun fades to rust;
Long shadows like fingers sweep
This might be an interesting image to base a longer poem on. I might just do that.