I saw this billboard on a pedestrian walkway, sat on the ground for about a half hour waiting for the right person to walk into view, and then had to get my timing right with the positioning in relation to the billboard. I took around 20 photographs of different people, this is the one I liked the most. One of the best tips I've heard in many readings and tutorials was to find an interesting setting, to be observant and select the person best suited to the space to make the shot.