Original Halloween costume-party flyer background, photorealistic editorial still life, portrait 4:5 composition. A richly textured deep plum and near-black velvet backdrop, very subtle dusky lavender haze and a softly glowing full moon high behind distant bare branches. Keep the central upper 58 percent spacious, dark and calm, with no focal objects, for editable typography to be added later. Along the bottom third: two naturally carved orange jack-o-lanterns lit with warm candlelight on a worn lavender tabletop, one small handmade ivory fabric ghost with stitched dark eyes, a realistic sleek domestic black cat seated at the lower right, tiny dry autumn leaves, restrained fine cobweb threads near the outside corners. Props feel tangible, charming and slightly mysterious, not childish and not gory. Warm amber practical lights contrast with cool plum ambient light; tactile linen, pumpkin skin, velvet and paper-like grain; subtle 35mm film texture, carefully art-directed studio photography, crisp main objects. Respect clean negative space through the center, no borders, no words, no letters, no numbers, no logos, no watermark. This is flat original printable artwork, not a photograph of a framed poster, not a website screenshot.