The model herself is beautiful; just tanned enough to stand out from the background, but light skinned enough so that the highlights on her skin complement the warm white of the background fabric. While slender, she seems bereft of harsh angles and visible bone structure, which serves to add to the femininity of the subject. Her pose is a compilation of triangles, the curve of her body, the arrangement of her elbows, that all seem to bring the focus back to the model.
My eyes go first to her hair and eyes, with her hair/face/body then serving as a top/left to bottom/right path, highlighted by the added pop of the white garter on her leg. The nudity is mostly implied, making it all the more beautiful.