A full body image of a terrifying extraterrestrial being resembling a humanoid spider, with venom dripping from its fanged mouth as it emerges menacingly from the shadows of a foreboding cave. Its eyes glow a sinister green, exuding danger, set against a backdrop of intense horror. The creature's design is intricate and richly detailed, illuminated by dramatic, cinematic lighting that casts eerie shadows. The scene is rendered in photorealistic, high-definition 8k quality, with a cinematic grain that adds to the chilling atmosphere, encapsulated in a vertical 9:16 aspect ratio.