Spooky Halloween Carnival Night Event

Professional Halloween event poster, vertical 9:16, flat vector with heavy silhouette. [Colors] Near-black plum background (#0B0410) flooded with a single hot-magenta light source; punchy fuchsia (#E8188F) to pale pink (#FF7FC4) gradient glow, everything rendered in one monochrome magenta-on-black palette. [Layout] Centered symmetrical stack: small wordmark row at the top, two-line display headline, a thin English subline, a massive hero illustration filling the middle 55 percent, then a two-line tagline band and a repeated phonetic strip at the very bottom. [Typography] Heavy spiky brush-script headline with sharp fangs and tail swashes, wide-tracked condensed sans subline, wide letterspaced micro-caps at the base. [Subject] A colossal black witch hat with a curled tip and stitched band, worn by a giant grinning jack-o'-lantern whose carved face and teeth glow pink; small ghost blobs, bats, a crescent moon and a distant castle skyline float around it, with candy and lollipops in the foreground grass. [Lighting & Mood] Backlit neon glow, deep silhouettes, playful spooky carnival energy. [Details] Bare branch framing in the corners, subtle film grain, crisp vector edges.