Cthulhu, the great terrifying ancient one, horror, immersive background

cthulhu, the great terrifying ancient one, horror, immersive background, dark fantasy, eldritch, cosmic horror, H.P. Lovecraft, mythos, surreal, nightmarish, chiaroscuro lighting, moody atmosphere, intricate details, cinematic composition, dramatic lighting, deep shadows, unsettling, sinister, otherworldly, (best quality,4k,8k,highres,masterpiece:1.2),ultra-detailed,(realistic,photorealistic,photo-realistic:1.37)

worst quality, low quality, bad anatomy, bad hands, bad body, missing fingers, extra digit, fewer digits