Deep Hollows Under Eyes and Large Malar Fat Pads - Advice?

Without examining you, it is hard to give specific advice.  However, what you describe is common in many people.  Defining a smooth lid-cheek junction is a goal in maintaining a nice aesthetic to the face.  This can be accomplished through several different procedures and surgeries such as dermal fillers or fat grafting, lower lid surgery or midface lift, or anatomic facial implants.  In consultation with your surgeon, you can determine which procedures or treatments are best for you.  Good luck.

I can see what you describe with respect to hollow under the eye (tear trough) and the nose to jowl line (nasolabial fold). I do not see what you describe with respect to the lips and in my opinion the prominence of the cheeks when smiling is a sign of health. The lines above the cheek prominence when smiling is a different issue. My recommendation would be filler injection to the tear trough and nasolabial folds and botox for lines above the cheek. That is the simplest approach with the best return for you money and the shortest recovery time. The results of filler injections around the eyes are very different between doctors so be very careful choosing the physician who does this for you.  aaronstonemd-plasticsurgery.blogspot.com/2010/04/nasojugal-crease-tear-trough-deformity.html

Smiling photos tend to raise the malar mound. It is hard to say from the photos. Sometimes non-invasive things such as fillers can help soften the areas.  Also facelifting techniques can help.