The problems here are seen practically every day in any active cosmetic dermatology practice. The good news is that they are relatively simple to fix and even better, the results are immediate, I.e. seen on the spot right after treatment. The sunken cheeks, which are contributing both to the smile lines and the marionette lines can be easily augmented with an HA volumizing filler. This would undoubtedly improve the smile lines and to some extent the jowling along the jawline and the marionette lines. The use of an additional HA lifting filler for the angles of the mouth would directly address the latter issue and would result in straightening of the angles of the mouth. Treatment for both areas at the hands of an expert injector should take no more than 20 minutes or so and engender little to no significant downtime. So, nothing to fret about. Just make sure to see the right doctor. Hope this helps and best of luck.