Cartoon Halloween Party Poster

Cartoon Halloween party poster, vertical 9:16, richly illustrated fantasy harbor scene. [Colors] Violet and magenta sky (#3B2352, #6A3B7A) against a pale gold moon, pumpkin orange (#F08A24) and candy-bright jelly accents, cream type. [Layout] Headline block at the top with a ribbon subtitle, centered hero group of characters, three dark rounded info cards in a row beneath them, and a wide amber call-to-action band at the bottom with two thin taglines. [Typography] Glossy orange-yellow 3D display title with a soft outline, arched ribbon subtitle in cream, small caps sans for the card labels, bold sans call to action. [Subject] A brilliant full moon over a cliff-top castle with lit windows, a misty harbor with a stone lantern in the water; foreground: a white ghost in a purple witch hat sitting inside a carved pumpkin overflowing with wrapped candy and lollipops, a black cat beside it, a second small ghost waving, autumn leaves drifting. [Lighting & Mood] Magical twilight glow, glowing pumpkin interior, warm-cool color split. [Details] Cobweb in the corner, sparkles, dew highlights on the candy wrappers, soft rim light on the characters.