Create an image of a serene and surreal landscape that echoes the aesthetics of the film 'Avatar'. Envision floating Japanese rock cliffs crowned with ancient trees, under a sky infused with vibrant pink, purple, and blue hues of a mystical sunset. The cliffs and the foliage on them are illuminated with bioluminescent colors, giving the entire scene a radiant, otherworldly glow. Waterfalls stream down from these floating islands, their waters sparkling with the same bioluminescent light, creating a breathtaking and harmonious natural wonder.