NL50: 3bet pot, villain looks rather weak, 2 barrel here?

[Specialwon]

Villain was 28/12/0 over only about 15 hands.

Ok, I almost certainly should not have 3bet this in the first place. But having done it, how bad is a 2 barrel here, or an all in shove on the river? Timing read suggested that villain really did not want to call my cbet.

Poker Room skin
No Limit Holdem Ring game
Blinds: $0.25/$0.50
9 players
Converter

Stack sizes:
UTG: $63.70
UTG+1: $52.55
Hero: $51.00
MP2: $63.85
MP3: $24.95
CO: $58.00
Button: $41.95
SB: $48.45
BB: $50.00

Pre-flop: (9 players) Hero is MP1 with Q[img]/images/graemlins/diamond.gif[/img] J[img]/images/graemlins/diamond.gif[/img]
<font color="#cc0000">UTG raises to $2</font>, UTG+1 folds, <font color="#cc0000">Hero raises to $7</font>, 6 folds, UTG calls.

Flop: 4[img]/images/graemlins/heart.gif[/img] T[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/club.gif[/img] ($14.75, 2 players)
UTG checks, <font color="#cc0000">Hero bets $10</font>, UTG calls.

Turn: 2[img]/images/graemlins/heart.gif[/img] ($34.75, 2 players)
UTG checks, Hero checks.

River: 6[img]/images/graemlins/diamond.gif[/img] ($34.75, 2 players)
<font color="#cc0000">UTG bets $20</font>, Hero shoves here or on previous street?.