Last Ginkgo

Create a fine-art botanical photograph of one golden ginkgo leaf suspended inside an irregular clear ice sphere, resting in a shallow meltwater puddle on charcoal stone. The sphere has a cloudy core, small trapped bubbles and one fine fracture that never obscures the fan-shaped leaf. Light it from behind with cool winter blue and add a restrained warm rim on the leaf. Keep the background almost black but show the wet stone texture near the base. The leaf and its curved stem are the sole focal event. Physically convincing refraction, quiet vertical space, no lettering or extra specimens. Generate exactly one finished image. Aspect ratio 2:3.