NL100 AQ on awkward board

[ship_it_trebek]

Villain is 15/6/2 over 250. Doesn't seem tricky or gets out of line. I don't really know what to do on the turn OOP. Comments every street appreciated pretty sure I butchered this.

Full Tilt Poker, $0.50/$1 NL Hold'em Cash Game, 9 Players
LeggoPoker.com - Hand History Converter

SB: $60.65
BB: $25
UTG: $122.05
UTG+1: $92
UTG+2: $169.15
MP1: $109.60
Hero (MP2): $102.50
CO: $101
BTN: $103.75

Pre-Flop: Q[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/spade.gif[/img] dealt to Hero (MP2)
2 folds, UTG+2 calls $1, MP1 folds, <font color="red">Hero raises to $5</font>, CO calls $5, BTN calls $5, 2 folds, UTG+2 calls $4

Flop: ($21.50) J[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/diamond.gif[/img] (4 Players)
UTG+2 checks, <font color="red">Hero bets $16</font>, CO folds, BTN calls $16, UTG+2 folds

Turn: ($53.50) T[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">Hero bets $31</font>, BTN calls $31

River: ($115.50) Q[img]/images/graemlins/heart.gif[/img] (2 Players)
Hero checks, <font color="red">BTN bets $51.75 and is All-In</font>,