Self Portraits with Expression

I am in the middle of a unit on Facial Expression/Emotion with my 1st graders.  We modeled and drew facial expressions, we made "Angry Bird" pinch pots, and we just finished up our Self Portraits.  I gave them a full paper (12x18) and instructed them on a head and shoulders portrait.  It was of course to look like them, since it was a self-portrait, and they had to use their facial expression to show one of the feelings we'd been talking about.  I let them paint with tempera cakes, and we outlined with marker after, which gave them a clearer, more finished look.