Design an original premium contemporary botanical exhibition poster, vertical 3:4. On a warm off-white paper background, a single oversized translucent emerald-green leaf with beautifully visible veins curves into an elegant abstract sculptural shape. Use refined black editorial serif typography and precise asymmetrical spacing. Exact large headline: "BOTANICAL FUTURES". Exact smaller subtitle: "ART IN EVERY LEAF". Each phrase appears once, perfectly legible. Crisp typographic hierarchy, rich paper texture, soft leaf shadows, generous negative space and museum-quality graphic design. No extra text, logos, watermark or mockup frame.
