AJ hand - Is my flop bluff too aggressive?

[PokerCat69]

Villain is new to the table so I have no reads.

PokerStars No-Limit Hold'em, $0.25 BB (9 handed) converter

UTG+1 ($10.10)
MP1 ($19.70)
MP2 ($21.05)
MP3 ($22.55)
Hero ($26.75)
Button ($48.55)
SB ($37.25)
BB ($25)
UTG ($9.70)

Preflop: Hero is CO with A[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/spade.gif[/img].
<font color="#666666">5 folds</font>, <font color="#CC3333">Hero raises to $0.75</font>, <font color="#666666">2 folds</font>, BB calls $0.50.

Flop: ($1.60) 9[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets $0.5</font>, <font color="#CC3333">Hero raises to $2.5</font>, BB calls $2.

Turn: ($6.60) 4[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, Hero checks.

River: ($6.60) A[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, <font color="#CC3333">Hero bets $4.25</font>, BB folds.

Final Pot: $10.85

If I raise PF, I like to make a continuation bet, or CR a weak flop bet, shutdown on the turn UI.
Standard or too aggro?
and should I even be doing this when one of my outs is counterfitted by a card on the board?

[amoeba]

your bluff is I suspect not a bluff and I suspect Ace high was best hand there and villain folds on the end because flush missed.

[deadmoney98]

I concur

[amoeba]

would you have bet a non A river?

[PokerCat69]

[ QUOTE ]
would you have bet a non A river?

[/ QUOTE ]
I would have, and folded to a reraise.