An ancient submerged Art Deco palace beneath crystalline turquoise ocean waters, elaborate geometric coral-encrusted domes and colonnades, sunbeams piercing through surface creating volumetric prismatic rays, Schools of luminescent fish swimming through marble archways, giant sea turtles gliding past floor-to-ceiling arched windows wrapped in swaying seaweeds and anemones, rusted brass sculptures and scattered treasure chests among broken marble floors, soft blue-green volumetric light filtering through ancient glass roof creating ethereal glow and prismatic reflections, rendered with Unreal Engine 5 raytracing and PBR materials, reimagined as hand-painted Studio Ghibli animation with visible brushstrokes and paper grain, cool aqua and phosphor green gouache color palette, cinematic wide composition with strong underwater architectural perspective and mystical oceanic depth