They are geometrical forms which are said to act as a template from which all life springs. They are named after the ancient Greek philosopher Plato. To the Greeks, these solids symbolized fire, earth, air, spirit (or ether) and water.
I came across this tutorial guide on how to draw a face . It focuses on the face patterns, shapes and features like eyes, lips and nose.practice drawing the eyes, how to draw lips, & a basic outline of drawing a face.