"HARVEST HAUNT CARNIVAL" is a vintage-style Halloween carnival poster announcing a town square event on Oct 25. Distressed orange and black slab lettering sits above a grinning black cat on a carved pumpkin, with a circus tent, Ferris wheel, bats and maple leaves on aged cream paper. Swap the event name, tagline, date and location to make your own harvest or Halloween festival poster.

Create a finished 3:4 portrait retro Halloween carnival poster in the printed-decoration tier of a 1930s–1950s Halloween postcard. Use exactly three colors: warm aged cream paper, pumpkin orange ink, and solid black ink. The cream is the paper itself; do not introduce other colors. Make the paper visibly yellowed with soft creases, worn corners, coarse halftone dots, and slight orange/black plate misregistration. Flat printed light only, with shading made from simple color shapes and halftone; no gradients, neon, or painterly scene. Set the exact copy, spelled correctly: headline “HARVEST HAUNT CARNIVAL” in very large, bold, wide retro slab-serif capitals, centered near the top and arranged across two balanced lines. Give the letters sturdy square serifs, uniform heavy strokes, and a letterpress impression with slightly spread ink; alternate pumpkin orange and black for strong contrast, with a cream keyline where needed for legibility. Above it, small centered eyebrow “COME ONE, COME ALL” in black. Below the title, place the exact supporting line “A NIGHT OF HALLOWEEN CHEER” in compact black capitals on a pumpkin-orange ribbon banner. Along the bottom, print the exact details “OCT 25 · TOWN SQUARE” in bold black capitals on a cream scalloped label. Make the illustration a major central feature beneath and partly framing the title: a large smiling pumpkin-orange jack-o’-lantern in front, with a friendly arched black cat perched behind it, pointed ears and curved tail clearly readable. Draw both as flat vintage printed shapes with simple dark outlines and restrained cream cutout highlights. Surround them with a few small black bats and pumpkin-orange autumn leaves. Keep the shapes crisp and graphic, not realistic or frightening. Give the whole poster the charm of an old carnival handbill found in an attic, with lively but carefully spaced lettering, clear hierarchy, generous cream margins, and every text line easy to read.