ふっくらした唇、くっきりした唇山
Keep the person's face, skin tone, expression, hair, outfit, framing, background and lighting exactly the same; only change the lips to look clearly fuller and plumper, especially the upper lip, with a defined cupid's bow and a soft natural rosy tint; obviously fuller than before but still believable. Photorealistic, natural, no text, no letters.