Very pleasing combination, using the jewelry as both a main interest as well as a kind of barrier to seeing the model. It creates tension but is handled well.
One aspect bothers me, and that is the turquoise on the left. The density of the silver chains on the left seems enough to form the boundaries of the picture, and act to frame it. then, the move back to the less dense area to its left, coupled with the turquoise color, seems to pull me away from the main picture.