KJs ... loose preflopraise

[higHstaKesOwneR]

Party Poker No-Limit Hold'em, $1 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Button ($157.15)
SB ($104)
BB ($211.05)
Hero ($110.90)
MP ($127.10)
CO ($34)

Preflop: Hero is UTG with J[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/club.gif[/img]. CO posts a blind of $1.
<font color="#CC3333">Hero raises to $4</font>, <font color="#666666">4 folds</font>, BB calls $3.

Flop: ($9.50) Q[img]/images/graemlins/club.gif[/img], 2[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, <font color="#CC3333">Hero bets $6</font>, BB calls $6.

Turn: ($21.50) T[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, Hero checks.

River: ($21.50) 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets $5</font>, <font color="#CC3333">Hero raises to $30</font>, BB calls $25.

Villian was a 50/25 fish...

Is this hand postflop ok played?
I mean a turned a monsterdraw but i don't think that i have much fe against this fish so i liked the checkbehind more than the second barrel...

i overbet the river a bit and i thinmk against a player like he is it's ok or?