Looking for feedback

[bluerex]

I'm new here on this forum and I'm just looking for feedback on how I played this hand. Primarily I'm interested in if I should have checked at all and my bet sizes where applicable.

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

BB ($42)
UTG ($52.10)
Hero ($50.35)
CO ($23.10)
Button ($25)
SB ($49.70)

Preflop: Hero is MP with Q[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $1.25</font>, <font color="#CC3333">CO raises to $3.5</font>, <font color="#666666">3 folds</font>, <font color="#CC3333">Hero raises to $10.25</font>, CO calls $5.50.

Flop: ($19.60) 2[img]/images/graemlins/club.gif[/img], Q[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $6</font>, CO calls $6.

Turn: ($31.60) 6[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $9</font>, CO calls $8.10 (All-In).

River: ($47.80) 2[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players, 1 all-in)</font>

Final Pot: $47.81

CO had KK.