Disney's Ariel, underwater scene, sparkling blue water, coral reefs, schools of fish, seaweed swaying in currents, sunlight filtering down from above, radiant smile, bright red hair flowing in the ocean breeze, shimmering tail, glittering scales, delicate fingers, flowing white dress with seashell bra, pearls around neck, holding a glowing shell, gentle ripples on water surface, soft ambient light, cinematic composition, vibrant colors.