Spooktacular Halloween Party Poster

Professional Halloween party poster, vertical 9:16. [Colors] Midnight violet #2B1240 sky fading to magenta #6B2A7A, harvest moon cream #F7E3B0, pumpkin orange #F58220, warm gold window lights. [Layout] Oversized stacked display title top center with a small bat above it; a marshmallow ghost floating left holding a lantern; a second round ghost drifting right beside a purple witch hat perched on a giant pumpkin; a black cat seated bottom left; a wooden sign with hand-lettered copy mid-left; a full-width footer carrying the date and venue row on the left and a QR block plus pill button on the right. [Typography] Fat rounded cartoon headline with white fill, violet outline and cream shadow, plus a ribbon banner subline in letterspaced caps. [Subject] Three glossy cartoon ghosts, one wearing a crooked witch hat, a cluster of jack-o'-lanterns with carved grins, a distant castle skyline. [Lighting & Mood] Soft moon halo, gentle rim glow on the ghosts, festive and friendly. [Details] Iron fence and picket posts, drifting leaf specks, four-point star sparkles, layered depth planes.