Which procedure would help improve my appearance and make my cheeks less pronounced? (photos)

I see that I have high cheekbones, and a flat face. Due to the flat face my cheeks don’t really “show” when I’m in a serious or resting face position, however once I smile my cheeks become really prominent. Also, if you keep looking down at the lower area of my face around the mouth it seems it is the complete opposite. It is not defined at all and it kinda looks like that area is heavy. Hopefully with the pictures you can see what I mean. Recommendations would be appreciated. Thank you