Act as a concept artist with 10+ years of experience creating surreal environments. Design an otherworldly landscape featuring massive floating rocks suspended in the air, defying gravity. Include upside-down waterfalls cascading upward into the sky, surrounded by glowing bioluminescent plants. The scene should have a dreamlike, ethereal atmosphere with a soft color palette of [soft purples, blues, and greens] and subtle fog. Add intricate details like [ancient runes carved into the rocks] and [mysterious glowing orbs floating in the air]. The composition should evoke a sense of wonder and tranquility, with a distant horizon line illuminated by a [faint, golden sunset]. Use intricate textures and lighting to enhance the surreal quality of the scene.