I attempted a homage to Albert Einstein, photographer Phillipe Halsman and artist John Nieto...I think I came close, but no cigar. I decided to try to freehand a mirror image of Halsman's original black and white photograph on YUPO, then color it in with Derwent Ink-tense pencils, in the color scheme by artist John Nieto, then wet the whole thing down.
There is a story told that Halsman famously asked Einstein what he thought of his math being used to slaughter innocents at Hiroshima and Nagasaki a second before snapping this picture, I can't verify that story.
It was a success because it definitely stretched my brain, doing the reversed image while drawing. I have never have talked to myself so much while working - "No, you moron, that line goes on the other side of the face..."