Well, no surprise there, it looks like they got their inspiration from Miazaki's "Howls moving Castle". Maybe not his best movie, but you can't blame the techniques used.

Robert van der Veeke Basugasubasubasu Basugasubakuhaku Gasubakuhakuhaku!! "Better is the enemy of good enough." Dr. Mikoyan of the Mikoyan Gurevich Design Bureau.