QQ vs. complete passive

[KaiShin]

Game is Cryptologic $1/$2. Table is mostly tight/passive, with UTG here being the most passive of the bunch.

Preflop: Hero has Q[img]/images/graemlins/heart.gif[/img] Q[img]/images/graemlins/club.gif[/img] in LMP
UTG calls, 4 folds, <font color="red">Hero raises</font>, 4 folds, UTG calls.

Flop: 5[img]/images/graemlins/diamond.gif[/img] 2[img]/images/graemlins/heart.gif[/img] T[img]/images/graemlins/heart.gif[/img]
UTG checks, <font color="red">Hero bets</font>, UTG calls.

Turn: A[img]/images/graemlins/diamond.gif[/img]
UTG checks, <font color="red">Hero bets</font>, UTG calls.

I figure I would fold to a CR here, but it never came, so I assumed a draw or K-low.

River: 5[img]/images/graemlins/club.gif[/img]
UTG checks, <font color="red">Hero bets</font>, UTG calls.

Wasn't sure about this river bet, but no draws seemed to hit, so I bet it for value thinking he paired his 10 on the flop.

Final pot 14.75BB

Results in white below:
<font color="white">Hero shows two pair, queens and fives.
UTG shows two pair, aces and fives(6c As).</font>

Thoughts about the river or anything else?