Tucson, AZ, 1986.
Looking at a photograph is not like looking out a window. It requires a system of thought processes to reach a decision. It is not a mysterious, God-given gift but a process involving visual language that can be taught and mastered.
Here, note the illusion of backdrop, enforced by the white line that separates the deck from the pool. The truncated shadow breaks the illusion of backdrop as the shadow drops off the ledge rather than continuing up the backdrop (presuming the illusion were debated).
