Hi everyone, I've tried to create a morph-based head on a image I created using a very cartoonish style, for example, with round eyes instead of more realistic-looking ones. And also, the nose is in a different position (more distant from the mouth) than a real human head. So, to apply the morph-based head, I always have to stretch a lot the four points of the eyes, to include the round eyes, and also, the result isn't very good.
I know there is the solution to use a sprite-based head instead, but I want to use only a morph based head for what I am trying to do now.
Is there a way to create a good morph-based head without changing my art-style?
Thanks in advance for clarifications.

Thanks Michael, your answer has been very helpful.