The photos show a small lower-cheek/jawline indentation that appears more noticeable with smiling. When a dent worsens with animation, possible causes include scar tethering or adhesion, uneven subcutaneous fat, skin laxity, or pull from the muscles around the mouth and platysma; the exact cause cannot be diagnosed from photos alone. The right fix depends on what moves and what is fixed during an exam. If it is scar tethering, careful release or subcision with small-volume fat grafting or filler may help; if muscle pull is contributing, a conservative neuromodulator plan may be considered. A facial plastic or plastic surgeon should examine you smiling and at rest before choosing a treatment.