As I mentioned before, Steve Hickner's He-Man and the Masters of the Universe storyboards could be considered "cute" at times. And this panel, from the season one episode "Return of the Gryphon", highlights that aspect of his art style better than most. In this illustration we see the Baby Gryphon, recently hatched out of its egg, looking incredibly cute! Fortunately, the Baby Gryphon retained its cuteness in the episode produced.
(click on the image to see it at full-size)