a dark and foreboding Cthulhu, massive tentacled creature,eldritch horror,otherworldly,cosmic entity,inhuman,nightmarish,abyssal depths,looming presence,tentacles writhing,glowing eyes,sharp fangs,alien geometry,unnatural angles,otherworldly landscape,dark fantasy,mystery,occult,chiaroscuro lighting,deep shadows,moody atmosphere,muted colors,cinematic composition,dramatic poses,skilled 3d artist,unreal engine,octane render,hyper detailed,8k,photorealistic
