A close up of a tunnel with a staircase and a staircase

Underground bomb shelters，Hidden underground military research base，underground combat headquarters，High-tech electronic instruments，future military equipment，steampunk machine structure，(Sectional view of the Underground Science Institute:1.5),Underground science institute accessed via underground shaft，The ant nest structure consists of multiple tunnels and chambers，The main part includes the entrance to the underground shaft、underground central courtyard、Underground storage rooms and underground housing, ETC.，light lighting，sense of technology，futuristic，Science fiction，cyberpunk，Unreal Engine，fault art，mechanical aesthetics，neon lights，

(nsfw:1.5),verybadimagenegative_v1.3, ng_deepnegative_v1_75t, (ugly face:0.8),cross-eyed,sketches, (worst quality:2), (low quality:2), (normal quality:2), lowres, normal quality, ((monochrome)), ((grayscale)), skin spots, acnes, skin blemishes, bad anatomy, DeepNegative, facing away, tilted head, {Multiple people}, lowres, bad anatomy, bad hands, text, error, missing fingers, extra digit, fewer digits, cropped, worstquality, low quality, normal quality, jpegartifacts, signature, watermark, username, blurry, bad feet, cropped, poorly drawn hands, poorly drawn face, mutation, deformed, worst quality, low quality, normal quality, jpeg artifacts, signature, watermark, extra fingers, fewer digits, extra limbs, extra arms,extra legs, malformed limbs, fused fingers, too many fingers, long neck, cross-eyed,mutated hands, polar lowres, bad body, bad proportions, gross proportions, text, error, missing fingers, missing arms, missing legs, extra digit, extra arms, extra leg, extra foot, ((repeating hair))