I used two flashes for this shoot; the Nissin 866 which is equivalent to the Canon 580ex II, and an older Nikon SB-26. It seems like an odd mix but they worked together swimmingly since both flash units have built in slaves and will fire when they detect a light burst. I put a red gel on the Nikon and made it as bright as I could. I left the Nissin on as low as possible with the diffuser over the flash to give harsh red shadows and soft white light. The Nikon with the red gel was placed low on a couch pillow and angled straight towards the subject. The Nissin was hooked to a camera and I slightly turned it away from the red light. I wanted the red light to be harsh and the white light to be soft to create a hellish scene. This final picture is 5 photos in one, which I later Photoshopped into one final image.