Would a combined malar submalar implant or extended orbital rim-malar implant be best for my very concave middle face? (photos)

I will need to see better photos.  As you have described one wants to "Fill" the flat area only and the ways to do this are many; each with advantages and disadvantages. Face forward and profile photos are preferred for evaluation.

it is very difficult to comment without actually seeing you from frontit also matters what you want projection or width or both 

What you are seeking is augmentation of the anterior malar region that also extends onto the lateral orbital rim and into the submalar region. Ideally a custom made implant is the best way to approach this unique area of midface augmentation. But certain styles of combined malar-submalar implants can be modified to closely approximate the ideal shape. Any form of orbital rim implant does not provide enough volume to the submalar region to be effective for this type of result.

Hi there. Is that you in the picture alongside the model? It would really help to have a full front and side views of your face in order to reach a conclusion about what would suit your face best. In case you have under eye hollows an extended orbitomalar implant will be better. However everyones facial structure is different and every patients needs are also different. Please consult a PS. 

Yes, you would benefit from softer, fuller, rounder cheeks.  This look makes women more beautiful and  feminine.  While your photos are not great quality, I can see that adding fullness to the cheek area would softer your face.  If you would like to send better photos, we can evaluate them.

I agree that a quality
augmentation of the mid cheek skeleton would be wonderful in enhancing your
attractiveness and permanently. I perform this in virtually every young patient
who wishes to have a more glamourous face as well as in most facial
rejuvenations as well as in patients whose flat cheeks form the basis for early
lower lid bags.

While not wanting to discourage
you from this surgery, you should be careful what you wish for. The example you
show certainly looks much better than before the surgery, even when you
discount the benefit of proper photographic lighting, hair and make up.However, you do not have to go
to the opposite extreme. Her cheek fullness extends too low down her cheek, so
it looks obviously surgical. Also it is partially aging as the cheek mound
becomes lower with aging, and is becoming there already. If you relate the point
of maximum cheek projection to the peak of brow projection they do not relate in
her as they do in beautiful faces.

In other words the cheek
projection in the oblique view needs to be high and the rest of the cheek
contour fits in with this. It is not just what implants that are used, but the
aesthetic eye of he surgeon in refining the shape of the implants when placed.

The implants you show are solid Medpor implants. Being solid, these do
not fit into the contour of the underlying bone, so the result may well be
overdone unless the surgeon shapes the implants once they are fixed in place. I
and some other surgeons prefer using a different implant material made of coral
granules, called hydroxyapatite, that the surgeon places onto the bone. The
implant fits completely into the surface of your bone and the surgeon builds up the
contour according to the plan formulated with your approval prior to surgery. Shapely cheeks are
beautiful but too much volume can easily happen and diminishes the result.