Looking at Gjon Mili’s remarkable photographs of humans in motion, I was reminded of all the drawings in Jason Polan’s Every Person in New York with more than two hands or arms:
“I only draw the person while I can see them,” Jason said. “The majority of the drawings are done (mostly) while I’m looking at the person, not at the paper.”
If they move or get up from a pose, I cannot cheat at all by filling in a leg that had been folded or an arm pointing. This is why some of the people in the drawings might have an extra arm or leg — it had moved while I was drawing them. I think, hope, this makes the drawings better.