Girls Just Wanna Paint Challenge

One of the many things I love about being in my painting challenge group is that it takes me to places I've never been- and although I did go to art school I never really studied chiaroscuro. Here's a description.https://en.wikipedia.org/wiki/Chiaroscuro.
I started with this image... It is Botticelli-  I started it monochromatic, in acrylics. but then I explored the value scale with color and try to match the value to the black and white to the framed section of his face. I struggle with value so this was a good exercise. I am going to try more- plus i LOVE painting faces! See all the girls renditions here.
Thank you for looking!