A shadow of a different colour

These workmen chaps have been hanging around our streets for sometime now replacing all the lampposts and they've been making a pretty thorough and good job of it. Walking back from my nursery run with Reidar Jnr3 I took a longer route back to photograph some trees (I've been doing a lot of that) and was struck by the light patches of grass, where containers have been sat, that made a strange off-shape and off-colour shadow for the lorry.