Cartoon eyes are the most important part of any character because that's where the most emotion is the portrayed. Get in front of a mirror and use your own different facial expressions and see how much of that comes in the eyes and how much comes from the other parts of the face like the mouth. Notice how a smile can turn into all different kinds of emotions by adjusting the eyes. I think you can quickly understand by looking in a mirror just how important the eyes are too showing any kind of emotion. .
