Fantasy portrait of a young woman, standing on a floating island in the sky, surrounded by fluffy white clouds and radiant sunlight, wearing a flowing white dress with golden accents, golden hair blowing in the breeze, bright smile, peaceful and serene expression, warm and soft lighting, pastel and vibrant colors, high detail, dreamy and uplifting atmosphere, camera settings: aperture f/2.5, shutter speed 1/200s, ISO 100.