Basically, the way to approach understanding where face furniture sits on heads, you have to draw a ball, split it in the middle for brow/eyes then add a bit for the chin.
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Video 1 – Brad’s Art School
Comment: A fun and simple way of learning the proportions of a face with some tips about mouth, teeth and lips.
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Video : RapidFireArt
Comment: quite a long video and covers three different angles – front, side and ¾ side.
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Video 3: Lazy Arts
Comment: This has nobody speaking but unlike the other two, the person has two circles which you then break down to get the various points for the face parts. I personally found it too complicated. But it is a short video especially as you can put it on double speed given it has no speech.
Overall, I just found trying to draw a circle then add a bit for the chin just a bit hard. The gallery shows that I tried to learn it a few times. After a while I just did an ovoid shape and stuck the face furniture in the various places with different degrees of success.
As I did the faces/heads, I began to use different parts of the face to establish where other face furniture went.