The
difficulty with drawing a nose
from the front is that there are so few outlines to help
you define its shape. You have to rely on tone to mould
its three dimensional form.
Begin
by drawing any outlines you can see, namely the edges
of the nostrils, the philtrum (the triangular dimple below
your nose) and the creases that slope away from the sides
of the nose.
Next,
slowly shade in the main areas of tone as cast by the
light.
Finally,
with careful observation, you can fine-tune the intensity
of dark and light tone to create a more realistic looking
nose.
