CBet #1 - Flop bet size could be smaller. Good analysis.

CBet #2 - This is a great example of a good time to c-bet multiway with tons of equity. Note the free card you get as well.

CBet #3 - Here Villain's flop range is going to be so wide that he's got to be folding enough for it to be +EV or he's calling with a LOT of Ace-high hands which you actually have decent equity against except the times he has you dominated (ie A9). Isolating these guys and lobbing c-bets is a place where there has always been, and will likely always will be, toooons of money in NLHE cash.

CBet #4 - We'll talk about this hand specifically next session.

Also that AA hand is super standard in case you didn't already know that.