What could be more visually delightful than something made visible by shadow? What you are looking at is a piece of shade cloth, looking west towards the lowering sun. There is a branch behind it with some leaves on it. The leaves cast their shadow on the cloth. Where the shadow falls, the overpowering light of the sun is dimmed and you can see through the cloth to the what is on the other side. Because you, the cloth, the leaves and the sun don't quite line up, you see both the image of the shadow and the disjointed images of the leaves beyond, made visible by their own shadow. Wonderful, just wonderful!