One of the aspects we went through in class was how important a good silhouette is. This came up in both 3D classes in different contexts, first in making animation poses more readable through a good silhouette. Secondly in the character dev course relating to how recognisable a good character is through its silhouette alone.
So here are some silhouette studies for the Oinkfrog and Unicycling Agent.
Plus watched Horton Hears a Who again and some of the special features where they talk through the creation of the single Maya rig they used for Horton - awesome. To read a little more - check this CGW article.