Can custom cheek implants create this type of shape and thickness? Would the photo below be a submalar or malar? (photo)

Both implants and fillers in the cheeks can create good results for patients.  Both can build up the cheeks and create symmetry.  You must balance the pros and cons of each procedure and do what you feel is the best decision for you.
Fillers:
Pros: No downtime Reversible Quick
Cons: Temporary More expensive in long run
Implants Pros: Permanent Great for patients with poor bone structure Less expensive overtime
Negative: Risks associated with surgery Possible infection Downtime
I hope this helps!

Hello kzepthepeaceCheek implants are available in a range of different shapes and sizes, they are mostly customized to fit a specific facial structure. Fillers such as Juvederm Voluma, Radiesse and RestylaneLyft are great alternatives to cheek implants, also fat transfer or injection can be done.

As best as can be seen in this one limited picture, this is a malar style that has a superior lateral orbital extension. A custom cheek implant can be designed in any way imaginable as long as it is capable of being surgically placed.