Prompt: Cthulhu is a monstrous cosmic entity in the works of H.P. Lovecraft who embodies the horrors of the universe and humanity's powerlessness in the face of such forces. It is described as a gigantic, tentacled, octopus-headed creature that resides in the underwater city of R'lyeh, waiting to be awakened by the alignment of the stars. His mere existence incites madness and terror to those who encounter him, and his awakening would mean the destruction of humanity and the world at large. 
Cosmic Horror ( Cthulhu:1.2) Cinematic Lighting, (photorealistic: 1.3),  cosmic Horror landscape, planet , star,  ovni, lovecraft, cthulhu mythos, - monolithic
Negative prompt: nsfw,  (worst quality, low quality:1.4), 3D,   green ,   bad-image-v2-39000