I’m not a huge Hiyao Miyazaki fan — okay, I haven’t even seen all the standards! — but I really like some of what he says here about story in general and about stories for children.
And what he says about stories of fantasy and monsters requiring the realism of human character and emotion, that’s spot on.
(Also, I love that even someone of Miyazaki’s stature is writing the story as he goes along. Makes me feel a bit more justified in my not-exactly-over-plotting approach.)