A vibrant underwater scene featuring a futuristic submarine with a lighthouse perched on a coral reef. the submarine is situated in the middle of the image, surrounded by a variety of colorful coral and fish. The coral reef is teeming with life, with a mix of different shapes, sizes, and colors, including shades of pink, purple, and yellow. The water is a deep blue, with sunlight filtering through the water, creating a bright and clear atmosphere. on the right side of the submarine, a small, yellow fish swims around, adding a playful touch to the scene. the lighthouse stands tall, with its light shining brightly, casting a warm glow on the surrounding coral. the overall effect is one of serenity and tranquility, with the vibrant colors and intricate details of the underwater environment creating a captivating scene.