秋の葉とどんぐりのステッカー、2色のリソグラフ風

Modern autumn sticker sheet, circular die-cut stickers, abstract leaf and acorn silhouettes, risograph grain, two-color overprint, amber and deep teal, thick white border around each sticker, generous spacing, compact shapes, no thin details, aligned grid, plain background, no text, 300 dpi, print-ready