hi,
1. glad you understand what i am saying.
2. i do not think based on the photo that your buccal area would need very much. although i am a big buccal fan for filling i go by a total aesthetic benefit and i do not think you need much or anything there but i am basing it on a single photo rather than seeing you in person. that being said, i think volume done right for you would make you look significantly better. i think the flatness of your central and upper face (brow, lower eyelid, anterior cheek) are principally where i see the aging and yes fat would look very good for you with the aforementioned considerations.
3. will you lose more fat after a second child? probably the same as the first one. hard for me to know but that unfortunately is very common situation.
4. thanks for the compliments regarding my work. i take a lot of pride in creating a very balanced result. even though you would look better with a fat transfer than a filler i would suggest for you one of two options:
a. wait until you have had another child before considering fat grafting and maybe when you are closer to 35 ish.
b. or do fillers for the meantime to get you to that point. in general i do not like to do fillers before fat transfer but given the recommended delay in time to do fat grafting i don't think it would "mess things up" so to speak. i truly believe that i would do a much better (and painless) work for your fillers than most docs out there because what i do with fillers is simulate a fat transfer (like a mini-fat graft). if it is at all possible for you to come in for me to help you you can fly back out the same day. my guess is that it would cost you probably 1000 to 2000 depending on your budget and it should last most of it for a year with good benefit for a couple years to 3 years after that in my experience. i personally think it would be worth it.

best,
sml
Samuel M. Lam, M.D., F.A.C.S.
Diplomate, American Board of Facial Plastic & Reconstructive Surgery
Diplomate, American Board of Otolaryngology Head & Neck Surgery
Diplomate, American Board of Hair Restoration Surgery