I was always inspired by the dramatic portraits that Chris Knight makes, until recently that his book got published, I couldn't wait for the print copy so bought the digital version.
This photo was taken with having his book in mind.
Gear used: Nikon D-810, Sigma 50mm f/1.4 Art, Three Profoto B1s
f/5.6 , ISO 100, 1/125 sec
One Profoto light on a Photek Softlighter umbrella for the background light, One Profoto Umbrella ( Deep, Medium,White) with the diffusion fabric for the main light and Profoto 5 foot Octo was used for the fill light.