Thank you for the question and your pictures. Especially in young people, soft tissue fillers are a great option for cheek hollowness and volume loss in the lower eyelid region. In my practice, I use Restylane or Belotero here. This is a hyaluronic acid (HA) based filler. Injections are done in the office, with plenty of numbing cream. I also use only fillers with pre-mixed numbing medicine. The fillers last around 6 to 9 months in most patients. Over time, if you like the effect of the fillers but not the repeated treatments, fat grafting or cheek implants may be an option, depending on the exact area(s) that you desire enhancement. Best of luck moving forward!