NL25 - QQ and an ace appears on the flop

[Ironic]

PokerStars No-Limit Hold'em, $0.25 BB (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

UTG ($24.40)
UTG+1 ($18.15)
MP1 ($21.40)
MP2 ($24.50)
CO ($45.40)
Hero ($26.45)
SB ($34.80)
BB ($5)

Preflop: Hero is Button with Q[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/club.gif[/img].
<font color="#666666">2 folds</font>, MP1 calls $0.25, MP2 calls $0.25, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $1</font>, SB calls $0.90, <font color="#666666">1 fold</font>, MP1 folds, MP2 calls $0.75.

Flop: ($3.50) 7[img]/images/graemlins/club.gif[/img], 2[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, MP2 checks, <font color="#CC3333">Hero bets $2</font>, SB folds, MP2 calls $2.

Turn: ($7.50) A[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
MP2 checks, <font color="#CC3333">Hero bets $3.5</font>, MP2 calls $3.50.

River: ($14.50) J[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
MP2 checks, Hero checks.

Final Pot: $14.50
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Table is tight hence my lowish pf raise, I had KK the previous hand and everyone folded to a $1.5 pf raise. Mistake?

What is the ideal way to play this hand?