Street Art?

No sorry. This isn't a post about some oh-so-fashionable Shoreditch street art.
It looks like the pavement near Sell! Towers is about to get a hammering, because those chaps with the aerosol cans have been out marking up where all of the pipes and stuff are. I think it's really interesting seeing these abstract, bright colours on the drab pavement. If you hung these on a wall, I reckon people would start stroking their chins and nodding sagely. What does anyone else think? Maybe I've just had too much coffee.