This was the first year the Jupiter Jubilee decided to have a chalk artist. Because this was a 3D picture, it needed to be explained to most of the viewers. The actual art is trapezoidal in shape, but when photographed at the right angle, becomes a old-time postcard with "Greetings from Jupiter, Florida" across the top.
I had 3 great volunteers from Jupiter High School that helped to explain how to take the picture correctly. The subject sits on the towel at the base of the picture and leans back just a bit and looks up. The photographer stands on the x marked on the ground and holds the camera up at the correct angle and - ta da - it looks like you are in the postcard.