Thank you for your question and for sharing your photos. At 51, the changes you are noticing appear to involve more than simply loss of facial volume. Your photographs suggest some degree of lower facial tissue descent, early jowling, and laxity through the jawline and neck, although an in-person examination is necessary to determine the underlying anatomy. When the primary issue is tissue descent rather than isolated volume loss, adding filler or fat grafting alone generally does not address the underlying problem. In appropriately selected patients, a facelift and neck lift can reposition descended facial tissues, improve jowling, restore a cleaner jawline, and create a smoother transition from the lower face into the neck. The specific operation should be individualized. Depending on examination, this may involve deeper facial tissue repositioning as well as treatment of the platysma and other structures of the neck. Facial fat grafting can also be added to the facelift selectively when meaningful volume loss is present, but ideally as a complement to structural repositioning rather than an attempt to camouflage significant laxity with additional volume. The goal should not be to make the face tight or dramatically different. It is to restore more youthful facial proportions and jawline and neck definition while preserving your natural facial features and identity. A detailed examination of the face and neck would determine whether surgery is appropriate and which techniques and components would provide the most natural result.