river bluff against flush draw

[1fineday]

Villain is 78/17/0.75 Went to SD 40, total hands 56
Is river bet good?

Party Poker, $0.10/$0.25 NL Hold'em Cash Game, 5 Players
LeggoPoker.com - Hand History Converter

BTN: $15.20
SB: $23.40
BB: $29.47
UTG: $38.43
Hero (CO): $38.68

Pre-Flop: A[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/heart.gif[/img] dealt to Hero (CO)
UTG calls $0.25, <font color="red">Hero raises to $1.25</font>, 3 folds, UTG calls $1

Flop: ($2.85) Q[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/club.gif[/img] (2 Players)
UTG checks, <font color="red">Hero bets $2.25</font>, UTG calls $2.25

Turn: ($7.35) 7[img]/images/graemlins/diamond.gif[/img] (2 Players)
UTG checks, Hero checks

River: ($7.35) T[img]/images/graemlins/heart.gif[/img] (2 Players)
UTG checks, <font color="red">Hero bets $3</font>, UTG folds

Results: $7.35 Pot
Hero mucked A[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/heart.gif[/img] and WON $9.99 (+$6.49 NET)