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This a favourite shot of mine, taken with one of Puplet's E-1s at an event we photographed back in June. Looking at it now I can see how another light, something really subtle (reflected through an umbrella?), to bring up the right side of his face and body would transform it.
Details I like are the soft diffuse north light from a tall window out of frame left and the blue room at the back lit with a remotely triggered flash. I would love to go and do it again, but better.