F'rëver: Facial sketch

I don't post very much but I want to share some of my personal art related with what I do at work, but in 2D with one of my characters, F'rëver. I love doing facial expressions in 3D (blendshapes) or in sketchs, especially in cartoon style.
I'd love to create a facial setup from this on a 3D model I will sculpt soon.