Illustrate an original anime scene above a sunlit sea of clouds. A chain of small floating islands is connected by rope bridges and tiny wind turbines. One adult sky-post courier in a cobalt coat and leather flight harness stands beside a compact winged mail glider, sorting sealed blank envelopes. Compose a wide cinematic frame with the courier and glider in the lower third and islands receding diagonally into depth. Use crisp hand-drawn linework, controlled cel shading and luminous painted clouds in cobalt, white, brass and coral. Keep the adult character, hands and glider coherent. No readable text, logo, watermark, collage or resemblance to a copyrighted franchise.