Doodle #3: Friends

This is the third of three doodles:

And why shouldn't they be friends?

Doodle #2: Discipline

The second in the series of three doodles:

Not our favorite virtue, but an important one none the less.

Doodle #1: Relations

We got this from Ed a while ago:

Not easy to categorize; definitely not part of his work for children!