Very Low Altitude Aerial Photography

While looking for a particular illustrator's work, I found this gallery - a collection of images taken by looking straight down in a variety of locations. Jon Sachs believes there is a lot to see right at our feet and presents this evidence to support his claims. It reminds me of my recent Street Shards photos, but with a lot more expertise and thought.
His photographs are great studies in texture and color and composition - here are a couple, and here is his gallery link.I love his quote about the first photo, "I did not put the leaf next to the rock. Somehow it seems to matter whether I did or not, but why?
Sometimes I do move things in order to make the photograph more of what it wants to be.But not this time."