Generates a cheerful, rough oil-pastel style Japanese school festival poster with student performers, food stalls, activity icons, and hand-painted text.
{"type":"hand-painted Japanese school festival poster illustration","style":"childlike thick oil-pastel and tempera paint, rough brush texture, uneven hand lettering, bright primary colors, naive perspective, white scuffed paper border, cheerful but slightly uncanny handmade flyer","canvas":"vertical portrait poster","background":"blue sky with rough white clouds, scattered colorful music notes and stars","headline":{"text":"文化祭","position":"top","appearance":"very large red Japanese characters with thick cream outline, hand-painted"},"date":{"text":"10月15日(土)","position":"upper right","appearance":"yellow hand-painted text"},"main_subjects":{"count":2,"description":"two middle-school students performing at a culture festival, both faces hidden by flat rectangular beige-to-gray gradient censor blocks","characters":[{"position":"left center","description":"girl in a white and navy sailor school uniform with red neckerchief, brown twin ponytails tied with red bands, holding a black microphone and raising one hand"},{"position":"right center","description":"boy in a white short-sleeve school shirt, spiky black hair, playing a bright red electric guitar with black pickguard"}]},"poster_text":{"count":5,"labels":[{"text":"たこ焼き","position":"lower left on red sign above food stall"},{"text":"わたあめ","position":"lower middle on red sign near cotton candy stall"},{"text":"チョコバナナ","position":"lower right on orange oval sign near chocolate banana"},{"text":"みんなで","position":"bottom left on green background"},{"text":"たのしく!","position":"bottom on red banner"}]},"festival_items":{"count":6,"items":["takoyaki stall tray with 3 round takoyaki balls and a black sauce bottle","red electric guitar","chocolate banana on a tray with colorful sprinkles","pink cotton candy on a stick","paint palette with multicolored paint spots","two theater masks at bottom right, one yellow smiling mask and one white sad mask with eerie expression"]},"decorations":{"count":7,"items":["red music note near top right","pink music note above performers","orange music note at right edge","green music note at left edge","yellow star at upper right","yellow star at left center","orange star at left center"]},"composition":"busy school culture festival advertisement poster, performers dominate center, food and activity icons fill the bottom third, all elements painted with thick uneven strokes and slightly messy edges"}
