Black Friday Mega Prize Giveaway

[Format] Professional Black Friday e-commerce sale poster, vertical 9:21, hand-drawn cartoon giveaway style on warm cream paper. [Colors] Background is a soft cream-white (#f7f2e8) with light speckle; title type is brush-textured red with hand-painted blue brackets; small doodle captions are green; the central board is white paper with red banners and dark grey text, prize amounts in red and orange; the bottom band is grass green with a yellow date pill. No frame border. [Layout] Top: red brush title inside hand-drawn blue brackets with a green doodle note at the upper right; a red ribbon header "> Triple Rewards <" pinned at the top of a large white board hanging from two metal clips; the board lists three prize sections; the bottom is a green grass strip with a yellow banner. [Subject] No people. A big white paper notice board with two silver clips, red section banners, underline squiggles and a cartoon thumbs-up hand with a heart at the lower right; paint-dab grass and sparkle doodles at the edges. [Headline] Red brush caps: "BLACK FRIDAY MEGA PRIZE"; red ribbon: "Triple Rewards"; section banners: "Reward 1 - Share & Win", "Reward 2 - Creative Contest", "Reward 3 - Fan Favorite"; body lines: "Share the campaign 7 days running to win a featured prize"; ranked lines: "1st: $499 prize pack", "2nd: $399 prize pack", "3rd: $269 prize pack"; note "Most-liked entry takes the crown"; three pills "1st $388", "2nd $288", "3rd $188"; yellow banner: "Event: Nov 24 - Dec 1". [Mood] Cheerful, community-driven fun; hand-painted craft charm announcing a three-way giveaway.