I like that the pictures are taken by government employees instead of the graffiti writers themselves nor by fans of graffiti.

Because of that the pictured artworks look much less nice, and the images can capture what 99% of the artworks actually provide to their surroundings: dismay, disregard, and a constant reminder that urban anonymity is a moloch that you can enjoy watching from a coffee shop’s window, while it pisses in a baby stroller.