Studio Ghibli style painting of an impossibly large ancient world tree, soft watercolor textures and hand-painted backgrounds, enormous roots glowing softly descending into a misty purple underground world, crown dissolving into golden heavenly light above clouds, tiny human villages with warm candlelit windows nestled along the trunk, fireflies and glowing spores floating through the air, lush green moss covering ancient roots, Hayao Miyazaki aesthetic, soft diffused natural lighting, painterly brushwork, rich greens and deep indigo with gold accents, no humans in foreground, vast epic scale