Create a refined cyanotype botanical star map on a single sheet of handmade cotton paper with subtle deckled edges. Arrange fern fronds, seed heads, and wildflower silhouettes into an invented celestial system, connecting them with fine white-gouache constellation lines, small orbit marks, and very sparse copper-leaf accents. Use a square 1:1 centered radial composition with balanced negative space and a clear rhythm of botanical forms. The main palette is deep Prussian blue and sun-bleached white, with oxidized copper used only as a restrained highlight. Reveal cotton fibers, uneven cyanotype exposure, delicate brush texture, and subtle metallic leaf under diffuse gallery lighting. Museum-quality mixed media; no readable text, letters, existing star chart, frame, hands, logos, watermark, digital neon, or mockup styling.