Kite running is not only what initially lead Hosseini to begin to write "The Kite Runner", but the kite's themselves represent Amir at the end. Amir is finally free of his guilt much like a kite is finally free after it has been cut by it's opponent.
Lift Your Wings and Soar with the Eagles.-) Remember my darlings, you are a spiritual being. just because you are temporarily trapped in a physical body does not mean that your soul does not know how to fly.
I really like how you can't see the streetlights but you can see them being reflected in the water. It makes it seem as if they were just floating in the water. The contrast between the color of the light and water is very interesting as well