This is a pre-post-production image from a shoot I did yesterday. No post-camera adjustments have been made.
Lighting details: I'm using Alien Bees strobes... the key light is a B800 with the AB beauty dish, just to camera right, a foot or two above the model, angled downward slightly. There are two more B800's, one on either side of her head, pointed straight at her, each with a 10 degree grid. A B400 with a 20 degree grid provides the soft spotlight behind her.
UPDATE: lighting diagram (rough) can be found here