Naive Marker PSA Poster

Create an image in naive-marker-psa-poster-style. Aspect ratio: 9:16. Scene: [SUBJECT] [SUBJECT_ACTION], featuring [PRODUCT_OR_PROP], in [LOCATION]. Include [BACKGROUND_ELEMENTS]. Style the characters with [WARDROBE_STYLE]. Illustration: make a finished raster poster, not a photo, SVG, UI mockup, or clean vector icon set. Use thick uneven black marker outlines, flat hand-colored fills, rounded stroke ends, subtle paper grain, marker scuffs, imperfect edges, and low-polish scanned-poster softness. Layout: reserve the upper half or upper band for a huge rounded speech-panel sign with a thick marker-blue border and off-white interior. Put "[MAIN_TEXT]" inside the sign as massive rough black block letters. Add "[SECONDARY_TEXT]" as a small rounded red or blue capsule label near the headline. Characters and setting: place one or more simplified cartoon people in the lower half with playful scale distortion, oversized hands, signs, or props, and intentionally naive proportions. Build the environment from flat doodled public-scene icons: tiny buildings, signs, cones, grass tufts, arrows, rocks, labels, alert marks, and simple yellow ground patches. Color and mood: use pale blue background, cream panel, marker blue frame, coral red accents, warm yellow ground, soft skin pink, grass green, chalk gray, and deep black ink. Keep the poster friendly, instructional, childlike, approachable, and lightly comedic. Include [ACCENT_SYMBOL] as a simple graphic accent.--- VARIABLES --- [ACCENT_SYMBOL] — lightning bolt, exclamation mark, hand sign, arrow, triangle warning icon, circular arrow, sprout burst, or comic burst [BACKGROUND_ELEMENTS] — flat tiny buildings, signs, arrows, grass tufts, cones, paper labels, small rocks, alert marks, bottle icons, paper scraps, and doodle symbols [LOCATION] — simple public setting, school area, street corner, library, garden, transit stop, clinic, market, lab booth, recycling station, or community space [MAIN_TEXT] — short bold public-service headline inside the speech-panel sign, maximum three to five words [PRODUCT_OR_PROP] — oversized object, book, tool, sign, device, food item, toy, bin, clipboard, safety item, or public prop [SECONDARY_TEXT] — small label in a rounded red or blue capsule [SUBJECT] — main simplified cartoon subject, group, students, volunteers, workers, neighbors, mascot, or public-service character [SUBJECT_ACTION] — main public-service action or frozen gesture, such as raising a hand, pointing at a sign, sorting objects, passing supplies, checking a list, or holding an oversized prop [WARDROBE_STYLE] — simple school, community, worker, volunteer, lab, neighbor, or everyday cartoon outfit with flat marker-color blocks --- NEGATIVE PROMPT --- watermark, username, creator ID, platform logo, QR code, app UI, signature, copied reference text, copied reference characters, red telephone, legal theme, date range, no-access sign, exact layout, brand logo, licensed character, recognizable person, photorealism, 3D render, glossy vector art, clean corporate icon set, gradient lighting, airbrush shading, thin elegant line art, realistic anatomy, correct architectural perspective, long paragraphs, dense fine print, dark cinematic mood