Would Sculptra help with this sagging? (Photo)

Thanks for your question. Sculptra will restore lost volume, especially int he mid face where it appears you may have some volume loss. It is hard to comment exactly given such cropped photos. If you do restore the cheek volume to a natural looking correction and you are still looking for improvement, you would want to move onto a skin tightening procedure rather than risk "over-filling". Consider these: Sofwave, Morpheus8, AccuTite. I hope that helps!

I gave up using Sculptra quite a few years ago. It is expensive, usually requires three treatment sessions to achieve any tangible, visible results, and it something goes wrong, there is no easy way to dissolve it.
Contract the above with the use of an appropriate HA volumizing filler for the cheeks (which would not only create a more feminine, heart-shaped oval face, but secondarily improve the smile lines) or the injection of a low viscosity, cohesive HA filler directly used to elevate and smooth the smiles. The results of these filler treatments can typically be achieved in one treatment session, and, should the need arise, these naturallfillers can be easily dissolved with hyaluronidase. Hope this helps and best of luck.