1st hand, not loving your sizings, you are quite polar with your bets vs HJ on akxx in general, you are not valuebetting 1 pair hand here very often or ever?, so size up IMO, if villain have checking range here he always have SDV on river, IMO he have easy time picking your bluffs, so unlike others i dont like it, but not hating either
2nd hand you rep quite thin after flop check, but if you are not doing this line with every similar combo it's fine, but it's easy to overbluff if you are raising all gutshots on simialr spots
3rd hand... i m not good enaugh to understand what you are doing, and villain may be in same spot, so i like 3rd hand most, maybe becouse of all things in this hand your sizings can make sense with hand you trying to rep from villain POV, you can bet str8 and weak flushes and i guess this hand went through