A four second exposure, with flash wired to the shutter opening, allowed the first freeze-captured position on the left. A high-left positioned light meant that with a deft change in body position, the remaining 3 or so seconds cast enough shape to record as a 'ghost' image. It took a lot of different attempts to get the right mix - the eye contact here says it all, as did the chance resultant facial expression of the 'demon'. Dodging and burning with Photoshop allowed everything to really shine...