The man pushing this cart of empty propane tanks has a physically punishing job. He can’t see what we can see – the man coming towards him just around the corner carries only a small bag in his hand. Meanwhile, two models are pretending to work in an advertisement overhead. They are doing nothing more difficult than holding a piece of paper in their hands. The propane tank man does not look at the advertisement, either. He cannot see the contrast of physical effort that we can see in this image. I also liked the play of color here – the man wears blue clothing, the wall is painted bluish gray, and two of the propane tanks are blue. Even the background in the advertisement is a shade of blue. The entire street scene seems to work together, supporting my contrast of effort idea.