is this hand well played?

Fold Preflop and dont bet this river for 1/3 pot. Think about villains range and what you want to accomplish.

3bet as default with something like AJs, A2s-A5s, AQo, 88+, KQs.

At NL2 I fold this pre-flop because of two reasons:
- UTG ranges are very tight.
- You're are OOP.

I'd just check the flop. It's a flop that connects with the villain range because of the K and by betting here you're turning your hand into a bluff right from the beginning, which rarely is well succeeded at this limit.
Basicaly, I'd just play it cool and try not to get involved in a big pot as you ended up doing.

As a matter of fact, this was a good spot to 3 barrel-bluff. The problem with it is that this move is very risky, specially with that board and against UTG. I also don't recommend you to do it very often.

I would fold pre flop. And postflop I think the question shouldn't be if we should fire again OTT. It probably should be if we should cbet the flop in the first place. We have a gutshot and not even a backdoor flush draw to go with it. UTG calls 3bets with a strong range that has pocket pairs and broadways. We probably won't get many folds. Especially with a 1/3 sizing.

So we don't have much equity and our chances to improve are small. We don't get many folds. Why do we bet?