Faces are my favorite subject to paint. I treated myself this week to both faces - and threw in a start on the flying seagulls too. I'm attempting to get the expressions right in this first pass. If that doesn't go well... I take a rag, some turp and wipe it all away. Even if I've struggled with it for hours. Since this is an underpainting, the values and expressions at this stage really dictate where the painting goes.
There's a lot of complexity coming up. "Losing the white" is the goal. Once every surface has a layer of paint I can work on bringing it all together.