Prompt: 8K, high quality, detailed background,  (a giant spider demon crawling upside down on the ceiling of a cave:1.1), dark hours, night, gloom, horror, detailed fur, grin, (sharp poisonous fangs), (many spider eyes:1.4), (sticky spider web:1.2), indoor, inside, Arachne, arachnid anatomy, (view from under:1.4)
Negative prompt: easynegative, ng_deepnegative_v1_75t, verybadimagenegative_v1.3, bad-picture-chill-75v, watermark, trademark