Retro 1980s pastel pop sticker-comic poster of a girl with giant bubblegum-pink cloud pigtails in a pastel rooftop playground with simple railings, vending machines and blocky skyline shapes, wearing a loose white tee and teal shorts, making a simple front-facing cartoon pose with clenched fists and a shocked open-mouth expression. Naive rounded character design, huge expressive cosmic eyes, simplified face, oversized hair shape, thick cyan brush outlines, offset magenta and yellow shadow outlines, flat color fills, bold halftone dot texture, rough screen-print grain, cute floating icons around the character: pencils, hearts, tiny clouds, lightning bolts, stars and ribbon strips. Large handmade bubble-letter headline at the top reading “BIG PANIC!”, layered like a printed sticker with white border and colorful offset shadows. Pastel bubblegum pink, sky blue, lemon yellow and teal palette, playful commercial sticker art, clean graphic composition, low-detail background scenery, no anime rendering, no manga magazine layout, no realistic anatomy, no barcode, no dense typography, aspect ratio 4:5.