Each face is different, and when I see a tilted head or a certain look that speaks to me, I like to try to capture it. Just as this ballpoint sketch on a small piece of paper:
I've been working on all sorts of different things, some Youtube studies on landscapes, working on a larger landscape on canvas, and making little portrait drawings. Creativity has to found you working is a quote I once read... so better take that pencil or brush and see where you end up...