One of my twenty for exercise 22, "Familiar Faces".
40x sped up video:
http://youtu.be/D6BcktYv26g
This took way longer than 10-15 minutes, but I really like Ingrid Bergman and wanted to really polish this. This is from a frame of her in Casablanca, as Ilsa.
Also, I keep remembering tips from Danar Worya's Portrait Painting tutorial, so have submitted this on that tutorial. Great tutorial. I've watched it 3-4 times.
I need more practice on certain things like eye placement and specific angles of key lines. The angle of the head on the left side, where the hair appears behind, and the cheekbone's curve was much too pronounced in my early stages.
Even so, the initial line art was the best this time out of all the familiar face exercise portraits, so I was off to a running start when blocking in the values. :) That was really encouraging. But really frustrating, I must have spent 10 minutes throughout the process just tinkering with pixel-by-pixel eye placement, plus resizing to try and get them to fit just perfectly, and so I must continue to work and learn.