The image shows a close-up of a sandy surface. The sand appears to be light brown in color and has a rough texture. In the center of the image, there is a small indentation in the sand. The indentation is made up of small, irregularly shaped lines and shapes. On the right side of the indentation, there are two black and white squares, one on top of the other. The squares are arranged in a diagonal line, with the top square being slightly larger than the bottom square. The image is taken from a top-down perspective, looking down on the sand and the indentations.