Looks good to me, like the c-c on the river when the flush draw misses. Not folding for what they have behind.

Pre: Standard obviously.

Flop: Fine.

Turn: Betting here for value is obviously good, I would probably go a little larger though. Villains at these stakes are not prone to folding top pair/draws so going large for added value seems better to me. I would be going near pot here.

River: Kind of gross river card for us, folding seems out of the question though given stack sizes and by checking we induce bluffs from missed draws so I like it.

I would have gone for a bet bet shove line against a 45bb stack. Villain will almost certainly be a weak player and probably has enough worse hands which will call it off for less than a pot size bet. I would guess that he's never folding any showdown value.