What would you recommend to fix my face atrophy and drooping right cheek? (Photos)

The cheek/midface asymmetry can be multifactorial.  Many people have mild asymmetries at baseline and one side may have been a little more atrophied at baseline.  On top of that, you had a significant trauma to your cheek, zygoma and orbit (ZMC fracture).  They did a good job trying to restore your malar projection as much as possible, but this can definitely exacerbate the problem.  Now the question is what can you do to improve things.  The easiest non-surgical way to improve this is to use strong midface volumizing fillers like Restylane Lyft, Voluma or Radiesse in this area to rebuild the cheek and midface projection.  These should last about a year and help you determine if you see an improvement.  Ultimately, a malar implant can be placed surgically for a permanent fix.Hope that helps!

It is very frequent that patient develops cheek and periorbital soft tissue atrophy after injury and surgery you had. The best way to address that problem is to replace it with patient own tissue by means of fat grafts; other options would be soft tissue fillers (Voluma, Sculptra, etc.). In person evaluation would help. Good luck.  

I had treated some cases with dermofat graft (not just fat) and other with silicone implants.Just rememeber you looks fine, and normal, but if you wish a procedure, you can gain some of symmetry, but never, nor before nor after a trauma or a surgery is really symmetrical