Those porch conversations really to knit the city together in a way that most people don't see. I remember reading that looking sideways is a good exercise for seeing things differently. Your capture looking sideways down the row illustrates the point.
Somehow this picture conveys community without the people. Would have been perfect for one of those challenges as well. Great shot, though it seems the perspective gets lost a little bit beyond the first porch. Did you try it a bit darker and with a bit more contrast? If you can recapture it, shrinking your depth-of-field might help too, though I'm not sure it would convey the same sense of community if the further porches were out of focus... Either way, a very simple shot, yet perfect for evoking a feeling!