Silhouettes are a useful method for designing your characters. They help make them as distinct as possible. In the above video I go over how to draw the head using silhouette shapes then building upon them.
1. Silhouette is the first thing to focus on to make your character unique. Comic characters have to be recognizable in any circumstance, framing, and lighting so having strong well defined shapes are a must!
2. After you are satisfied with your silhouette work within that general shape and add to their personality.
-play with the expression of the eyes
-move, add, take away features