The
mouth is the second most expressive feature of the
face. Great care should be taken in drawing its shape
as it is a key element in achieving a likeness.
Start
by drawing the subtle shape of the line that is formed
as the lips meet. This will create a natural expression
for the mouth.
The
top lip has its characteristic bow shape which varies
considerably from person to person. The bottom lip
is usually larger than the top and more creased with
vertical stretch lines.