On a Rock in the Bay

Visit San Francisco! Alcatraz Island sits out in the middle of San Francisco Bay. Now it's a museum, and a terrific place to visit, but back when it was open it would have been a dismal place to be. This was a sketch, with some photobashing for mood, followed by a paintover. I've then added a few inperceptible chaos elements via AI to remove that uncanny digital perfection.