High-angle wide panoramic view looking down on an entire fantastical underwater city nestled within a vast colorful coral reef at the bottom of a clear ocean, seen from above in bright daytime. The city is built of pale stone and coral-shaped towers with domes and spires, connected by arched bridges and glowing tube walkways, its streets and plazas clearly visible from overhead. Enormous coral formations in vivid pink, orange, purple, teal and yellow tower around and among the buildings, with schools of tropical fish weaving between the towers and gentle sea turtles drifting by. At the top of the frame the bright, sunlit sea surface is visible, shimmering with ripples, pouring golden shafts of sunlight down through the clear blue water in dramatic god rays that illuminate the whole city. Various submersibles and submarines of different shapes — round pod-shaped vessels, sleek torpedo-shaped craft, ornate fantasy submersibles with portholes — cruise above the city with their headlights and running lights turned on, small bubbles trailing behind them, some descending toward the city docks. Bubbles and glittering particles drift through the water, soft caustic light patterns dancing over the rooftops. Bright, cheerful daytime underwater atmosphere, saturated colors, highly detailed fantasy concept art, painterly digital illustration, epic scale, cinematic wide-angle lens, sharp detail.