Cartoony Portraits

I know everything is subject to personal taste, but I love portraits that are painterly and capture the character/expression of the subject. But I also love some portraits where the subjects are what I call 'Cartoony'. Jessica Rockwell's is an example of this type of portrait. Some of them I loved, where she seemed to combine the silly with the real.

I was going to ask where you draw the line between something that is too much like a cartoon and something that isn't, but again, that is subject to individual's tastes. So will ask this, as portrait artists, (I've seen a lot of your works, BRAVO!) As you are painting, do your paintings ever look too cartoony to you? Is there something you do to avoid this or correct this?

DJ