A mystical mermaid gracefully glides through the serene depths of the ocean, enveloped in a swirl of iridescent air bubbles, her shimmering scales reflecting a spectrum of tranquil aquamarine hues. The scene is captured with striking photorealism, showcasing the intricate details of her flowing hair and delicate fins. The atmosphere is bathed in soft, ethereal light blue tones, with cinematic floodlighting casting gentle waves of illumination across the underwater landscape. Sunlight filters through the water surface above, creating a majestic interplay of light and shadow, while schools of colorful fish dart playfully around her in vibrant harmony, offering a glimpse into this enchanting aquatic world at an aspect ratio of 1:2.