I needed this. I don't really like the patronizing from the beginning but it does good in showing the flaws one makes often and more importantly guide us in the way to correct them. Observe and practice. Nsio explains: Foreshortening by Nsio
Delineate Your Lips Como Desenhar Mangá … - How to draw lips correctly? The first thing to keep in mind is the shape of your lips: if they are thin or thick and if you have the M (or heart) pronounced or barely suggested.