Pre: Standard.

Flop: I'm not a fan of this check raise at all, there are not a huge amount of hands that we will fold out here that we are behind as I would expect a reasonable chunk of his PP's under the K to not be c-betting.

Turn: When we get called I would be firing again here after binking the 5. The heart sucks as it makes him more likely to fold his Kx but most players are not able to fold top pair at these limits so I see no reason to slow down at all. I would bet around 50c.

River: With the betting initiative I would keep betting here. As played I would probably lead here with the intention of folding to a raise. Most players check back a ton of single pair hands like Kx here on the river with this kind of runout so we don't want to let that happen. If we get raised then we can safely assume villain has a flush.

I don't like the flop raise because our hand has very poor equity to improve if called, only 2 outs. I much prefer the raise with a backdoor flush draw or even Ax as least we can make top pair.

Turn we flop the nuts (Yes a flush is there but if we're not betting for value on the turn with a set, we're going to leave too much value on the table at these stakes). I see no reason to check here, I'd bet again and then bet the river.

This idea of turn small pairs into a bluff works well in position on a board with lots of draws. You'll find if you barrel the turn 100% you can check behind on the river and you will still have the best hand a decent amount when the draws miss plus you get folds along the way too. Here OOP it works poorly.

When you bink the turn it's a mandatory bet for value and to prevent him freerolling a heart on you. Checking is a big mistake, we want three streets of value. When you raise the flop villain will assume you are doing it with flush draws some %, now when you check a lot of the time he will get paranoid and check behind with a hand that might call down if you just bet turn and river.