Fine or spew? I´d appreciate comments on river bet size.

$1/$2 No Limit Holdem
5 players
Converted at weaktight.com

Stacks:
Hero ($285.85)
CO ($483.05)
BTN ($197.00)
SB ($170.00)
BB ($224.70)

Pre-flop: ($3, 5 players) Hero is UTG
Hero raises to $8, 2 folds, SB calls $7, BB calls $6

Flop: ($24, 3 players)
SB checks, BB bets $16, Hero calls $16, SB folds

Turn: ($56, 2 players)
BB checks, Hero bets $38, BB calls $38

River: ($132, 2 players)
BB checks, Hero bets $75