A retouch in Photoshop. What appealed to me about the original shot is the interesting pose by the model.
I added depth by using the dodge and burn tools in Photoshop. On a layer above the original image, 50% grey set to overlay. This enables flexibility in how strong the effect is, as I can independently adjust the opacity.
I like the tone I brought to the skin, which was achieved using a combination of curve adjustments isolated only to the skin.