From these photos it appears that you may be a candidate for Bellafill but there are a couple of cautions.  It appears that you would be best suited to start with micro needling.  Deep micro needling, at least 2 mm or more, usually results in a very nice improvement for situations like yours.  I usually reserve Bellafill for the scars that do not appreciably improve after at least 3 sessions of micro needling.
Bellafill for acne scars is sometimes a disappointment to patients because it will only result in a 60 to 70% improvement in acne scars.  Many acne scar patients come to us hoping that Bellafill will be a panacea for their concerns.