Colossal cosmic tree supporting galaxies across deep space

An impossibly gigantic ancient tree growing through the entire universe, its branches supporting galaxies instead of leaves, glowing nebulae tangled between roots, planets hanging like fruit, cosmic waterfalls flowing into black holes, tiny civilizations living on the bark, breathtaking scale, cinematic lighting, volumetric rays, ultra detailed, masterpiece, award-winning concept art, HDR, ray tracing, global illumination, physically based rendering, Unreal Engine quality, octane render, fantasy realism, 8K, sharp focus