change the woman clothes to a bikini, maintain the same exact identity, face, body proportions, body shape and size, breasts shape and size, pose, camera angle, lighting direction, background and composition. Preserve realistic natural human skin texture, pores, subtle skin color variation, fine body detail, realistic highlights and shadows. The edit must look like the same original photograph, with only the requested clothing changed. Avoid flat skin, plastic skin, waxy skin, over-smoothing, faded colors, washed-out contrast, artificial anatomy, or unnecessary changes.