Retouch this photo with subtle, natural, photorealistic corrections while keeping everything else EXACTLY the same. Do NOT change the composition, background, lighting mood, clothing, skin tone or overall look of the photo.
1) Brighten the underarm/armpit area and remove the dark shadow/patch under the arm, making the skin tone even and natural, matching the surrounding skin.
2) Slightly reduce (soften) the wrinkles and folds on the neck — keep it looking natural, do not over-smooth, preserve realistic skin texture.
3) On the hand, make short, natural, neat fingertip nails visible — short length, natural pale/neutral color, no bright polish, realistic and subtle.
STRICT CONSTRAINTS: Do NOT alter the facial features, face shape or expression in any way. Do NOT change the position or pose of the hands or arms. Keep identity, proportions and everything else identical to the original. Result must look like a natural, untouched photograph.
