In the photo, there is a visible contour depression on one breast, most noticeable along the lower/inner breast contour. A small amount of asymmetry after a breast lift with implants can be common, but a distinct indentation is not usually considered an ideal or expected final shape. It can come from several causes, including scar tethering, tight or uneven lower-pole skin, implant position, a fold or pocket issue, capsular contracture, fat thinning, or tissue being pulled by the lift closure. The timing matters a lot. If this is early after surgery, swelling, tissue tightness, and scar maturation can change the appearance over several months. If it has been many months and the indentation is stable, it is less likely to smooth out completely on its own. Correction may involve releasing tethered scar tissue, adjusting the implant pocket or inframammary fold, fat grafting, scar revision, or a combination, depending on what is found on exam. I would bring this directly to your surgeon and ask what structure is causing the depression, because the best fix depends on whether it is mainly skin/scar, implant position, capsule, or soft-tissue deficiency.