Are these jowls or buccal fat pads? What can be done for my lower face? (Photos)

I'm unhappy w/ my cheeks & lower face, I can't tell if it's buccal fat or Jowls, also it feels like to me depending on what I eat its more or less puffy throughout the day. Pls let me know what could give it a more defined appearance. Im 26, 5'4" and 110 lbs; the fullness seems to subside a bit if I eat very little food for days, but even then it's still not that defined, how do I tell if it's actual buccal fat or jowls or some other kind of interstitial fluid swelling? And what can be done?