Future Frontier: Desert Oasis

post apocalyptic dystopian desert futuristic city that looks good and liveable, three people turned backwards in the center very large size, a small lab experiment like scientific mutation type alien creature that IS 100% HUMAN SIZED BECAUSE I DONT WANT A GIGANTIC MONSTER THE SIZE FO 10393 HUMANS TOGETHER with lots of teeth and claws kinda like a demogorgon or dinosaur on the GROUNDD roaring at the people, flying vehicles and the three people should have white hair then the other should have LONG wavy brown hair and the last one should have armor