Originally posted by RS 2thou:
The black is the whole point of cartooning, it gives it a more cartoony look. I put a shine into the eyes on some of my fan art and it can look kinda strange. Thats why the eyes on my avatar seem a little strange.
If you want to get technical, that "shine" is called the catch light. Sometimes when people draw, they don't put the catch light in the same spot for both eyes. That makes the them look really wacked out, it would be like having the pupils looking off in different directions.
In general, I agree that just the pupil makes it more cartoon-esque. That doesn't bother me as much as their size, sometimes they just look too small.