This is a very well-constructed shot (as well as a very cute one ). The plain black background not only lets the viewer devote his attention to the subject of the feet, but it also develops a very strong and effective contrast with the light tones of the skin. I also like that the feet themselves have a substantial amount of variance in tone. Great lighting! You struck a great balance here between softening the picture and keeping the definition of the texture of the feet. Awesome composition, too! Great placement and just enough negative space. Overall, a simple and beautiful photograph!