Value bet river?

[Mark1808]

$5 $10 live
$1,000 effective stacks.

I raise to $40 with KK, 1 caller in BB who is loose calling station. Pot - $85

Flop Q-8-6 rainbow, checked to me and I bet $60 and am raised to $200. Villan had earlier made a big call with 2nd pair. I call pot is $485.

Turn 6, villan bets $100, I call.

River 2, villan checks and I check.

Comments on any street would be appreciated.