Hi Debra,
You have some wonderfully energetic portraits here. Great job!
By 'optical red' do you mean putting red along the edge that meets the background? The only discussion of optical red I've read involved a dark background and a very thin, orange-red line along the section of unshadowed skin that meets the background. I think the idea was to show some slight glow of energy around the body and how flesh reacts to being lit up.
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