a terrifying ancient eldritch entity, dark mysterious horror, tentacles, glowing eyes, sharp teeth, alien and otherworldly, abyssal depths, cosmic horror, obscure and unknown, nightmarish visions, surreal and dreamlike, (best quality,4k,8k,highres,masterpiece:1.2),ultra-detailed,(realistic,photorealistic,photo-realistic:1.37),dark moody lighting,dramatic shadows,muted color palette,cinematic composition,disney pixar style