PROMPT:
Galactic Grotto: A Celestial Oasis on a Remote Planet at Twilight, Where Iridescent Caverns and Luminous Waterfalls Emerge from a Tapestry of Emerald and Amethyst Hues, as a Nebula's Soft Glowing Aura Illuminates the Ancient Alien Ruins, with Vines and Strange Foliage Twinkling like Starseeds, in a Scene that Pulsates with an Otherworldly Energy, Vibrant Colors and Photorealistic Textures.