Ok... the shadow. The shadow where it's blue. The pretty no dumping sign. The lovely pink paint. The orange splodge. The way the white line triangle peeeps into the picture. Ditto the black foot (if it is a foot) bottom right. The lovely roundness of the drain cover. The lines and numbers in the concrete. The fag butt in that lovely black stripe of a shadow that runs so perfectly above the pretty pink paint. The green headed matchstick (if it is a matchstick) lying in it's concrete groove... The way they all hang together in an absract painting kind of way.