Love his use of light and dark in this painting. DaVinci was a true genius. Artist and engineer? How does one use both sides of his brain magnificently when so many of us struggle to use just one adequately? lol
Btw, Walter Isaacson has a new DaVinci bio coming out that is on my reading list. I've read several of his other bios and they are fantastic, so if you like to read... Cheers!