Any better line for my AQ here?

[murmeltier21]

Hey guys!
Villain is 20/13/1.5 over only 100.
He seems reasonably aggressive and i think he knows what hes doing [img]/images/graemlins/wink.gif[/img] after this hand he told me i coulda played this better and i woulda gotten his stack if i did?!
comments on every street are welcome. i didn't reraise pf due to pot control out of position [img]/images/graemlins/shocked.gif[/img]
please help me out here

Party Poker - No Limit Hold'em Cash Game - $0.25/$0.50 Blinds - 4 Players - (LegoPoker HH Converter)

SB: $83.03
Hero (BB): $85.50
UTG: $87.59
BTN: $123.12

Preflop: Hero is dealt Q[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/spade.gif[/img] (4 Players)
UTG folds, <font color="red">BTN raises to $2.00</font>, SB folds, Hero calls $1.50

Flop: ($4.25) Q[img]/images/graemlins/heart.gif[/img] 7[img]/images/graemlins/diamond.gif[/img] Q[img]/images/graemlins/spade.gif[/img] (2 Players)
Hero checks, <font color="red">BTN bets $4.00</font>, Hero calls $4.00

Turn: ($12.25) 4[img]/images/graemlins/club.gif[/img] (2 Players)
Hero checks, <font color="red">BTN bets $6.00</font>, <font color="red">Hero raises to $21.00</font>, BTN calls $15.00

River: ($54.25) A[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">Hero bets all-in for $58.50</font>, BTN folds

Pot Size: $112.75