Create a side-by-side comparison image of a 23 years old brown

Create a side-by-side comparison image of a 23 years old brown-skinned girl standing against a plain background to showcase a before and after transformation. In the 'before' image on the left, depict the girl as shorter with a simpler hairstyle, wearing a black T-shirt and jeans, having a small tattoo on her upper chest. In the 'after' image on the right, show the same girl taller, with a more confident posture, a fuller hairstyle, with the same small tattoo on her upper chest, and the same black T-shirt and jeans. Both versions of the girl should have the tattoos on the same places, Both versions of the girl should be smiling and looking directly at the camera, with a noticeable difference in height and overall presence. Keep the background neutral and the lighting natural to focus attention on the transformation.