Eerie Halloween Carnival Night Sale

Professional Halloween sale poster, vertical 2:3, cinematic photorealistic fantasy. [Colors] near-black plum (#1A1024), dusty violet fog (#5B3F6E), giant sepia-orange moon (#E8B98A), electric lime accent (#B6FF3C), warm harvest gold (#E9A63C). [Layout] asymmetric: title block upper left, moon filling the upper right, black cat as the mid-low hero, illuminated castle and river valley in the distance, thin CTA pill anchored at the bottom center. [Typography] dry-brush white display type with grit reading "Halloween Carnival Night", a glossy magenta-violet secondary line, thin letterspaced caps for the date "10.31 NIGHT", lime underline stroke accents. [Subject] a black cat with luminous green eyes perched in profile on a moss-covered stone wall, a carved pumpkin lantern glowing beside it, twisted dead vines and bare branches framing the left edge, a gothic castle with lit windows on a cliff across a moonlit river. [Lighting & Mood] cold moonlight rim light, deep shadow foreground, faint mist, elegant and eerie. [Details] small copy lines read "Night party, starts now", "Limited time, up to 50% off", "Join now" button; keep texture grain and atmospheric haze, no logos.