Gothic Violet Halloween Event Poster

Professional Halloween event poster, vertical 9:16, single-hue violet gothic design. [Colors] monochrome range from deep plum #3A2A57 to pale lilac #C3AEDC, crisp white type, soft #241A38 vignette at the edges, no orange at all. [Layout] stacked vertical composition: small logo lockup top-left, year badge top-right, an oversized arched wordmark beneath a spiderweb, open fog space in the middle, a centered date block, a giant bottom wordmark, and a thin contact strip along the base. [Typography] a heavy warped brush display face with chipped edges for the headline, wide-tracked small caps for "10.31", a high-contrast serif with curling flourishes for the lower "HALLOWEEN", fine uppercase sans in the footer. [Subject] a spired gothic castle and bare tree branches on the left, a flat black witch-on-broom silhouette at right, five small bats drifting upward. [Lighting & Mood] hazy moonlit fog, low contrast, elegant and eerie rather than cute. [Details] torn deckle paper edges, hairline double-rule frame, painted grain texture, footer carrying a phone number and a street address.