This strange photo was taken under a bridge passing over the canal in Walsall depicting artwork on the far wall. I am intrigued how they managed to paint this - they must have used a boat. It was only example of art I found on the opposite wall where there is no pathway.
I often speculate concerning the practical difficulties of producing some of the graffiti work around. I suppose that working from a boat would have certain advantages over being up a ladder, or hanging over the side of a bridge. A cool layered shot.