Start with two different sized circles like below.* Sample 1 will be our guide for a full face view and sample 2 a side view profile.

Step 2:

We need to now mark out where the features will go.* Study the samples below and see how the linear guide will help.

Step 3:

You can see how the linear guide helps us to draw in the features.

Step 4:

We can now add the cheeks, jaw, ears and hair.