Sorry, but bet sizing is terrible.
Pot of 53 and you donk for 15? First off why are you leading this flop after flatting a 3-bet oop? Not saying it's horrible but you should be able to justify it. Curious on your logic.
But you should be betting 30-40 if you do bet this flop.
Then on turn pot is 83 and you bet 35. Not quite as bad but should probably be more like 50-60.
Then river pot is 153 and you lead for 50?
You're just betting super-small, villain seems like kind of an idiot from your reads, and there's no way I'm folding getting this kind of odds
on my money after the way we played to this point. That said I expect him to show up with a boat/flush the majority of the time. But even if he shows up with it 75% of the time our call is still profitable.
But I still hate the small bets. We have deep stacks so should be betting big and putting pressure on our opponent.