Models Ashley and Rebecca as witches.

Body - D600, lens Nikon 80-200mm f/2.8 AF-S

Models in middle of black backdrop.

Westcott Rapid Box - 26" Octa Softbox at 1/2 pwr SB-900 boomed above.

One SB-900 1/4 power in parabolic umbrella (bounce) camera right.

One SB-600 at 1/16 power with green gel in cauldron pointed up.

Smoke added during post in Photoshop.

http://www.chrisromanophotography.com