It is a very good photo, @velimir, beyond my personal considerations about what I might consider an abusive use of graffiti (as when made on walls of historical and cultural monuments). Certainly, as you say, your photo offers us an interesting game of approximation in colors and a very striking confluence between cryptic forms (graphies), as making reliefs (high and low) between them, but also in horizontal and vertical arrangement. Almost a pathetic sample of the chaos we have become.