I think this is fine. You kept the pot small and you didnt scare off the hands you beat and gave them a chance to put some money in on the turn. I dont like getting too aggressive in this spot because I dont nescesarily want to end up allin with this board.

Any reads on villian? If he capable of bluffing this river? I would have bet 2K on the river as kind of a blocking bet in case villian decides you probably dont have a K or boat because you didnt bet it, and he thinks of bluff-pushing you off the hand. It also serves as a value bet.