A woman in a black dress and horns is standing in a dark room

Thank you for the information. In that case, the Lord of Nightmare could have bright blue eyes that glow an intense red. She would wear dark, flowing robes that have intricate designs and patterns that reflect her mastery of dark magic. The robes could be adorned with skulls, dark symbols, and other sinister motifs. She could also have a tattoo or scar on her shoulder or body that represents her connection to the dark arts. The Lord of Nightmare would be a formidable and intimidating opponent, with her powers of darkness and her connection to the multiverse.

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))