How to draw the features of the face for a realistic portrait. Draw eyes, nose, lips, and ears. I will go over the anatomy and structure of each feature followed by a step by step drawing.
Summarizing Andrew Loomis's approach to drawing the head. It's a great method for drawing the head from various angles. Draw the head from the front, side / profile, 3/4 view. Learn how to add an up or down tilt to the head, left and right turn, and a twist.