Serene Autumn Landscape with Moon and Pumpkin

Minimal seamless decorative background illustration of a soft full moon above gentle autumn hills, one tiny pumpkin, one rounded tree silhouette, a few tiny stars, spacious composition with lots of negative space, Scandinavian illustration, Japanese stationery aesthetic, picture book simplicity, muted pastel palette, dusty cream, muted olive green, soft blue gray, warm ivory, very low saturation, very low contrast, simplified rounded shapes, premium decorative background, calm Halloween atmosphere, no haunted house no frame, no border, no white margin, no picture frame, no poster, no mockup, no paper sheet, no wall, no gallery