The first part of the assignment was to draw loose shapes and then make them into character designs. It's definitely a fun creative exercise, but I think the most useful part of it is how it forces you to play with proportions. Since the dimensions are already set out for you, the challenge becomes to determine how to arrange things within that shape to make your character the most appealing. I can't say that I was entirely successful in picking the best proportions for these guys, but it was a lot of fun anyway.
I forgot to scan in the original shapes, so I included quick trace to show what I started with.
The other part of the assignment was to (after doing some drawing from nature) do some character designs incorporating elements from rocks, trees, and clouds. We had two photos we were supposed to base the character designs off of, which I didn't scan in. I didn't really use anything from them anyway, other than a loose gesture of the pose. Edit: Here's one of the pictures, anyway. No matter how hard I try, I can't get the rock guy to upload. Maybe later, then.