The Image Boards of Hayao Miyazaki
https://animationobsessive.substack.com/p/the-image-boards-of-hayao-miyazakihttps://ghiblicon.blogspot.com/2008/03/imoto-he-for-my-siste...
Having the propeller so high up relative to the center of mass is going to produce a massive pitch down moment: because there's only a small horizontal stabilizer, it would require very aggressive thrust vectoring or elevon usage. A fly-by-wire control system would be essential, I think.
The anhedral wing angle would make it even more unstable, and there is really no reason for it here except aesthetics. Seaplanes with wing-mounted propellers could benefit from the extra clearance, but the propeller is not even on the wing here.
See the 737 MAX for how this kind of pitch instability can go very wrong: https://en.wikipedia.org/wiki/Boeing_737_MAX_groundings
It also shows why the movie ends as abruptly as it does and why Ghibli was eventually disbanded. With Takahata gone everything was bottlenecked by Miyazaki's himself, and he was simultaneously crumbling under the pressure and refusing to let anyone else have creative input in the studio.
But I think they released a exhibition book to go along with this that has a lot of his artwork in there as well
That's what that giant flying wing warship is from