Hi Rita - The little circles are supposed to represent her footprints. They are just made with black thread.
Hi LuAnn - It's actually supposed to be in Antarctica, so it is water and snow rather than sand (not important, but thought I'd mention that). The snow and water aren't actually pieced. Instead, I chopped up some fabrics into small pieces and set them on the fusible side of some heavyweight fusible interfacing, and then ironed them in place, gluing some pieces that were small or overlapped others too much. Then put tulle on top and stitched the fabric in place. You can see the details of what I did on my blog. There's a link in my original post, but I should probably test it to make sure that it works.
Thanks for your kind comments!!