You've achieved a very cool effect! It reminds me of old prints of film that have faded after years of being stuck in a photo album. The sparse landscape might be contributing to that impression as well in that it reminds me of my little hometown before it was developed the way it is now.
I love the mood this captures. There is a sense of mystery; where is this, who are these people walking on the roadside, why are they there, and where are they going.