I was over weight and lost 60 pounds.
Congrats. That is a huge accomplishment.
My suggestion is to try to tone yourself, probably via cardio exercise. I think this would actually change your face in a positive way. Also, are you getting proper sleep? You do not look well-rested, so I'd suggest focusing on getting sleep, too. This opinion is just based off the photo you posted.
I can't speak much about your original question of implants. I don't know anything about implants or how they should look.