A colossal celestial ocean kingdom floating within infinite cosmic seas, massive luminous wave-formations with crystalline foam crests serving as living highways between floating island-cities, towering aurora-pillar spires with flowing light-waters forming ethereal dwelling chambers with cascading stardrop waterfall features, massive floating light-island platforms connected by rainbow-bridge walkways spanning luminous void-chasms between radiant wave-fortresses, soft warm celestial gold and deep cosmic violet illumination from twin dying suns piercing through swirling nebula veils, robed tide-wardens with crown-prisms riding giant luminescent cosmic-whale steeds between towering light-pillar citadels, deep indigo and radiant gold color palette with cool silver starshine accents, awe-inspiring ethereal mood, dramatic horizontal composition with wave-spires descending through layers of floating luminous particles toward infinite aurora-filled horizon, epic cinematic Lord of the Rings scale, hyper-detailed matte painting, 8K fantasy art