Please don't post results in hand analysis, seeing what actually happened biases analysis.
Villain's relatively passive postflop, and two of the overcards he's likely to have floated from the flop are now on the board. If he's holding a pair lower than TT's, you're good (other than 66 and 33), and I think it unlikely he's holding a pair higher than TT (would've expected a raise pf). I get wanting to look him up on the river from a possible induced bluff, but think this isn't the right spot for it.
If Hero had two-barreled the turn, this might be different, since big slick just hit two pairs - but it means a third bet, and I think that a lot of Villains with those stats will look up Hero with a weak A even after a substantial river bet.