Hello fellow :)
These days I was trying to catalog some facial shapes to don't forget cartoon basic facial shapes during blend shapes sculpting process or facial bones setup. I've created this image with some of the shapes that I consider important.
Click here to see this image in hi-res. In this attempt, my goal was to have a guide to help me, but I decided to share this to get feedback and suggestions. Feel free to send me a message about this document, I'll be very glad :).