Enhance a photo to high resolution with a natural, realistic appearance. Focus on refining facial features subtly, ensuring that textures like skin remain soft and lifelike. Adjust both eyes to appear symmetrically open while keeping them natural. Enlarge the photo to a larger size while preserving clarity and authentic detail. Negative: no artificial sharpness, no plastic-like textures, no over-smoothing, no exaggerated contrast, no noise or pixelation.