
Its a photoshop for sure. But I think it's a cool little thing. Sorry if this idea has been thrown before though and/or already exists.
From what I can tell... the only difference would be to cut out sections of the fuselage both fore and aft of the wing roots. No change to the wings, control surfaces or engines of any sort. Only, to cut down the fuselage to 5 windows fore of the wing emergency exits and 12 windows aft... the math adds to 17 so 18 windows in all including the one in the wing exits. (And this is on one side so 36 in all) I have no idea how to figure seating but it can not be a whole lot.