[dan_sim]

I always wondered if DaVinci wanted that effect or it just "happened".

[oneplusone]

From the article:

So did Leonardo intend to sow so much confusion in the brains of viewers, not to mention scientists? Absolutely, Otero Martinez contends. "He wrote in one of his notebooks that he was trying to paint dynamic expressions because that's what he saw in the street."

[JoeAltmaier]

Leonardo absolutely nailed his subjects. So give a little credit to Lisa del Giocondo. Maybe she had just sat still for too long.