Underwater scene featuring a single freediver suspended in the vast blue expanse of a cave. The diver, in a streamlined pose, is swimming upward toward the cave's opening, which is at the top center of the image. Sunlight streams in through the cave entrance, illuminating the water with ethereal blue light. The cave walls are visible on the sides, with subtle textures and shadows. The overall mood is serene and otherworldly, capturing the tranquility and beauty of deep underwater exploration. The perspective should be from below the diver, looking up towards the surface and the cave entrance. The colors should be bright and vivid to capture attention, with shades of blue for oceanic hues. Use flat design techniques like bold outlines and minimal details in the style of flat design. 2D game art, bold lines, simple background, digital painting, fantasy art style. --ar 4:5 --v 6
