What procedure would be the most beneficial for my problem area?

It is impossible to give you good advice based on your photos. Since you have achieved your goals regarding weight next step would be to seek a help of a professional. You should consult a board certified plastic surgeon in your area for detailed evaluation and discuss your options. Good luck.

Hello Enz26-Its difficult to give you any advise without better and more photographs. From the one distant photo that you have included of your face, you appear to be young in age. Fullness in the cheeks can reflect youthfulness as we age, so be careful about how you proceed. Liposuction of the face/neck might be a first good option for you with or without reduction of your buccal fat pads. Please go consult with a board certified plastic surgeon about these options and others they may mention when they see you in person.Good luck,

 In our practice, we do not recommend removal of any fat in the face. When you have reached your ideal body weight and have diet resistant fat in the neck, liposuction can remove the fatty deposits above the platysma muscle. Surgical removal of the fatty deposits underneath the muscle is required along with a platysma plasty, also known as a neck lift. No skin removal is required. For many examples, please see the link and the video below

Dear enz26, First of all congratulations for loosing your weight and staying physically fit at the same time. Patients come in my office quite frequently with similar complaints and the patients are fit and in shape and can't get rid of the fullness in the lower cheek area. They say they have "chipmunk cheeks" and this is treated surgically with buccal fat pad removal. In some occasions this will also include some liposuction of the jaw and chin area however it is dependent on each patient. When removing buccal fat it is important that the surgeon is skilled and has a lot of experience in this area as the amount of fat you remove is crucial to the patients outcome. I have included a link below and video above to show you an example of this procedure. Best regards, Michael V. Elam, M.D.

From your pictures it is difficult to advise on your best course of action.  Consulting with a board certified plastic surgeon will give you options based on your age and facial structure to determine whether liposuction, buccal fat  removal or another procedure would resolve the issue in the most effective and natural way.  Best wishes.