Use a photograph or illustration of a stage in a dark, urban environment to create an underground effect. Use a palette of dark colors or shades of gray to reflect the atmosphere of the underground environment. Add graphic elements such as graffiti, stickers and urban elements to create an authentic atmosphere. Use bold typography, with street style, to emphasize the title of the event and create an eye-catching effect. Include short, direct messages that reinforce the theme of the event, such as "Rap in Mexico!" or "The true underground culture!" Use a textured and layered design to create a sense of depth in the flyer and give it a more authentic effect.

(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))