So I start with the outline of the basic head shape, measure out where the facial features sit, remember to put the eyes halfway on the face, although the eyes are disproportionally large; this is intentional.
I sketch the lines across the paper so that the next sketch lines up with the first and the measurements remain consistent. This time I sketch the head at a slightly turned angle.
I had a tendency to misalign the features when the head is slightly turned but the practice is paying off, I only have to re-draw the mouth, everything else gets put in the right place first time!
Again sketching the measuring lines across the page I sketch the head from the side this time. This angle is an easy one. I won't sketch it from the other side because the hair pretty much blocks out the face.
The back is slightly trickier because I'm trying to show more structure and form in the hair, but I don't think I've represented it accurately.
So that's the quick character sketch from four angles.