Magical Halloween Castle Party Poster

Fantasy 3D Halloween party poster, vertical 9:16, storybook render with high production value. [Colors] Lavender and magenta twilight (#5B3B96 to #B25C9E) with pastel candy clouds, warm ivory moon, glowing orange pumpkins (#FF8B2C), emerald hedges, parchment beige panel. [Layout] Title lockup centred at the top under a rounded moon halo, date ribbon beneath, castle filling the mid background, hero characters on a garden path in the lower third, torn parchment rules card occupying the bottom quarter with a QR code at its right edge. [Typography] Glossy extruded cartoon lettering in gradient orange with white highlight and purple outline, cream ribbon caps for the date, small bold sans in the rules list, hand-drawn numbered lines. [Subject] Chibi girl witch in a purple hat and dress holding a mini jack-o'-lantern bucket, big carved pumpkin glowing at centre, glossy white ghost waving on the left, black cat sitting on the path, pastel balloons floating above. [Lighting & Mood] Dreamy dusk glow, soft bloom, warm lamp light, magical and entirely child-safe. [Details] Turreted castle with illuminated windows, iron street lamps, stone pavers, scattered confetti and candies, flowers in the hedge, tiny bats, curved banner ribbons.