I don't have a lot of fat, but I still want minimal amounts removed under my jaw. Is this possible? (Photo)

For many people stubborn fat areas just won't go away with diet and exercise, liposuction to the jaw area will give you excellent results based on the photos provided.

Based on the photos you have posted it is very hard to tell if you are a candidate for this type of procedure.  Fortunately, it is very safe when performed by a certified physician (Dermatologic Surgeon or Plastic Surgeon) who has specialized training in this procedure.  Seek an expert for a cosmetic consultation. I do not feel any neck tightening procedure will be useful, but a chin implant maybe helpful as well.  I wish you the best of luck, Dr. Emer.