Perfectly diffused lighting and perfect DOF make for a very classy nude. Well balanced composition. The position of her arms and crossed over hands serves well to mirror the upwards position of legs and crossed feet. This might be overanalyzing, but her short rounded hairstyle is great in that it compliments her round buttocks and also does not impede on that full view of her back-side. It goes without saying that she is a fantastic model and that you have utilized her quite well her. One thing I wonder which may or may not have improved this image is if the pillow covering part of her shoulder and obscuring her breast had been tucked under in order to see a little bit more of that area. That is a totally artistic point of view not to be construed as my libido getting in the way! Cheers! Awesome image!
It is not easy at all, rather pretty difficult, to add something new after this other critique. It has said most of what i see too. Down to the little corner of the pillow... I'd like to add two things though: The beautiful editing accentuates the softness of the model in a way, you almost can feel this soft skin. I envy you your technique. Besides i do love the composition: The way, you guide the eye of the viewer from the hair, the hands,and the eyes over the back and the buttocks all the way down to the feet. Classy and very special! A winner in my eyes. Have you tried any competition?