Create a 3D model of the Sisimite, a terrifying humanoid cryptid from Central American folklore. It has extremely long limbs, a lean but muscular body covered in coarse dark hair, and a hunched posture. Its face is nightmarish: glowing sunken eyes, a wide mouth with jagged fangs, scarred and partially decayed skin, and no nose. Fingers and toes are elongated, ending in sharp claws. The design must feel unnatural and fearsome. Style: hyper-realistic horror with cinematic lighting. horrify smile