TRSE: How To Draw Tutorials:
Reading the Patterns in the Pictures
Example 3

Ranma (both male and female forms) of Ranma 1/2

Even both male and females share very similar patterns. The only basic differences are the narrowing
of the waist, with additions of the chest "bumps" and wider hips to differ the females from males.
The hair tend to be bit thick meaning that they usually don't limit themselves to the "circles" that make up the heads.