She looks stunning! I love how she makes this contrast to the dark background and, of course this splash-effect you put on her. However, I find it kind of strange how you did the necklace, it is supposed to be flat and not as, well, thick as you made it here. Her expression is fine, but I think the eyes should not be as flashy as you drew them here. Nevertheless a great piece of art you've done here, keep it up!