Capture the ethereal beauty of a bride swimming gracefully underwater, viewed from below the surface. The bride, dressed in an elegant, flowing white gown, moves with a fluid grace reminiscent of a mermaid. The fabric of her gown billows around her like a cloud, illuminated by soft rays of sunlight filtering through the water. The intricate lace details of her dress shimmer in the aquatic light, adding a touch of delicacy and sophistication to the scene. Her hair, adorned with delicate pearls and shimmering crystals, flows around her like a silken veil, creating a mesmerizing halo of beauty. The bride's serene expression exudes a sense of peace and tranquility as she glides effortlessly through the crystal-clear water, surrounded by a school of colorful, tropical fish that dart playfully around her, adding a whimsical touch to the enchanting underwater tableau.