25NL I go insane and attempt a triple barrel bluff

[Khaos4k]

PokerStars No-Limit Hold'em, $0.25 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

CO ($24.65)
Button ($27)
Hero ($34.55)
BB ($53.75)
UTG ($31.30)
MP ($26.70)

Preflop: Hero is SB with A[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/diamond.gif[/img].
<font color="#CC3333">UTG raises to $1</font>, <font color="#666666">3 folds</font>, Hero calls $0.90, <font color="#666666">1 fold</font>.

Flop: ($2.25) 5[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $1.5</font>, UTG calls $1.50.

Turn: ($5.25) 6[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $4</font>, UTG calls $4.

River: ($13.25) 2[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $8</font>

Final Pot: $13.25

I put villain on an over pair or a flush draw. Is my line believable, and will it get him to fold?

Edit: Villain is 36/12/5 over about 60 hands.