What procedures can be performed to improve the lower half of my face? Chin implant? (photos)

It appears that your chin is mildly recessive but long. A CT or cephalometric x-ray would identify if there is a vertical length problem. Typically, the length of the chin is best reduced with a genioplasty. Simultaneously, the chin can be corrected for symmetry and horizontal projection. In one procedure, all these concerns can be addressed. The surgery is performed in the office with sedation anesthesia.

This is my expertise and a huge portion of my practice. Asymmetry is normal and expected. See an expert who does facial shaping with surgical and non surgical methods to get a comprehensive option. Best, Dr. Emer.

It would be very difficult to give you good advise based on these photos. It is possible that small chin implant could create change that you need. In some plastic surgeon's offices 3D animation may be available to demonstrate this type of improvement. In person consultation with a board certified plastic surgeon with good reputation in facial rejuvenation is recommended. Good luck.