These are tiny 2" x 3" thumbnail sketches, done from memory and a photo reference. These are compositional tools: I'm making sketches like these to figure out how I want to paint this scene when I return to this spot next week. Normally I make thumbnails with pencil, but artist Christine Lashley (with whom I'm studying this autumn) suggests doing thumbnails with watercolor. What a nice idea! I think I like #1 the best.