Not an aerospace engineer, but I think it looks borderline plausible and simultaneously very unsafe.

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