I admire the emotional range of this piece, from the brooding minor key sections to very fanciful and uplifting music. This would be very good for an animated feature because I can fairly see the characters on the screen, and this sort of thing always requires quick changes in mood which you convey in a very convincing and naturally musical way.
Btw, are you familiar with "The Snowman," an animated Christmas feature that was composed by a British composer, whose name I can't remember?