Edit the existing photo only. This is NOT a new image generation. Preserve the exact identity of both people with 100% facial likeness. Do not change their faces, facial structure, head shape, eye shape, nose, lips, jawline, cheekbones, ears, skin texture, hairstyle, expression, age, ethnicity, pose, clothing, lighting, background, camera angle, or composition. The faces must remain exactly the same as in the original photo.
Only make these edits:
* Left person (father): change only the iris color to natural dark brown; slightly darken the eyebrows while keeping their exact shape and thickness.
* Right person (son): add a realistic, well-groomed full beard that naturally matches his existing facial features and hair color; change only the iris color to light blue or light gray.
Do not alter any other pixels. Perform only minimal local edits. The result must look like the original photograph with these small modifications only. Ultra-photorealistic. Identity preservation is the highest priority. No face regeneration, no face replacement, no beautification, no style changes, no AI look.
