Enhance and upscale the given old photo into a 4K ultra-high-resolution portrait, preserving the original face and identity exactly the same without any alterations. Apply a modern, new-generation photography style, as if captured with a professional full-frame DSLR or mirrorless camera using a prime lens. Ensure sharp facial details, natural skin texture, and realistic depth of field (bokeh effect) for an authentic look. Adjust color grading to cinematic tones with balanced contrast and vibrant yet natural colors, making the photo appear colorful, lively, and full of life while maintaining a realistic aesthetic. Use soft professional lighting, refined highlights, and controlled shadows to create a studio-quality effect. Add subtle background enhancements such as a mild blur or gradient for depth, ensuring the entire photo looks like it was freshly captured in a high-end photo shoot. The final result should be authentic, modern, aesthetic, colorful, and highly detailed—while keeping the person’s face 100% accurate and unchanged
