I made this image because of the two diagonals – the slanted roof of the Westward Ho, built in 1929 as a luxury hotel, and now converted to low income senior housing, appears as a dim reflection in the window behind the cactus. Another diagonal appears as a shadow on the wall just below the cactus. The pair of diagonals echo nature’s design etched into the central cactus – the plant is ribbed with twisted diagonal furrows.