Capture a full-body image of a terrifying alien entity resembling a humanoid spider, with toxic slime dripping from its maw as it emerges from the shadows of a dimly lit cave, possessing eerie, glowing emerald eyes. The creature's design is dark and intricately detailed, with a palpable sense of horror. It is illuminated by dramatic, cinematic lighting that enhances its photorealistic features, adding layers of texture and depth. The atmosphere carries a haunting cinematic quality, rendered in a high-resolution 8k, with a subtle grain that adds to the eerie ambiance.