Main landing gear's position would cause the thing to rest on its nose. There could be a nose wheel hiding under the fuselage, with the apparently fixed tail wheel that would make landing cumbersome. Passenger doors could be two-part things, with the lower part dropping down, or one-part with the whole thing sliding inside, then sideways. Complex. NOTAR system to explain absence of tail rotor, but I see no control vents. There are some suspicious looking rods sticking out of the extreme tail.
None of the details are completely impossible. It smells of Colani.
In my opinion it adds up to fake.