There is such a silent screen siren feel about this image. In terms of technique, this is a masterpiece. The lighting is fabulous, and the tonal range lush, although the bottom crop is just a teensy bit tight for me.
From a modeling pov, I have a couple of nits: her pose is rather awkward and stiff, with her left shoulder a bit raised, and her right arm positioned unnaturally. Also, her mouth is a bit tight, and does not match the allure of her eyes. Beautiful model.