老照片修复为单反级高清人像

将这张旧照片修复成专业的数码单反相机品质人像，改善色彩和细节， 使用可媲美 Canon EOS R6 Mark II 的高级放大技术。 保持自然，面部特征准确，清晰度高。

Restore this old photo to professional DSLR-quality portrait, with improved color and detail, using advanced upscaling comparable to Canon EOS R6 Mark II. Keep it natural, with accurate facial features and high clarity.