Superhero inspired by Enlil, the Mesopotamian god of wind, earth, and storms, often considered the supreme deity in the Sumerian pantheon. Reimagine him as a sentinel of the cosmic skies in a future where the heavens hold the keys to life. His attire melds Sumerian deity aesthetics with advanced sky-tech designs, adorned with ziggurat and cloud motifs. His aura resonates with the vastness of the cosmic canopy. Incorporate a staff, crowned with a radiant planet, that can shape or shield any celestial body. Colors: sky sapphire, sovereign silver, and sentinel sand. Capture the essence of a sentinel overseeing the grand expanse of the cosmic skies.