Did I play this hand to aggresive?

[VPIP100]

Party Poker
Limit Holdem Ring game
Limit: $0.25/$0.5
9 players
Converter

Stack sizes:
UTG: $15.42
UTG+1: $4.55
Hero: $13.15
MP2: $3.45
MP3: $15.80
CO: $16.70
Button: $5.15
SB: $10.80
BB: $13.50

Pre-flop: (9 players) Hero is MP1 with 6[img]/images/graemlins/diamond.gif[/img] 6[img]/images/graemlins/heart.gif[/img]
UTG folds, UTG+1 calls, Hero calls, 2 folds, <font color="#cc0000">CO raises</font>, 3 folds, UTG+1 calls, Hero calls.

Flop: 3[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/spade.gif[/img] (7.4SB, 3 players)
UTG+1 checks, Hero checks, <font color="#cc0000">CO bets</font>, <font color="#cc0000">UTG+1 raises</font>, Hero calls, CO calls.

Turn: 4[img]/images/graemlins/spade.gif[/img] (6.7BB, 3 players)
<font color="#cc0000">UTG+1 bets</font>, <font color="#cc0000">Hero raises</font>, CO calls, <font color="#cc0000">UTG+1 3-bets</font>, <font color="#cc0000">Hero caps</font>, CO calls, UTG+1 calls.

River: A[img]/images/graemlins/club.gif[/img] (18.7BB, 3 players)
UTG+1 checks, <font color="#cc0000">Hero bets</font>, <font color="#cc0000">CO raises</font>, <font color="#cc0000">UTG+1 3-bets</font>, <font color="#cc0000">Hero caps</font>, CO calls, <font color="#cc0000">UTG+1 calls all-in $0.05</font>.

Results:
Final pot: 29.8BB

UTG limps but doesnt limp reraise, so I put him on a PP 99 or less, maybe a suited connector. He is a decent player so far but hit a few unlucky boards.

CO is LAG/TAG preflop, but I think he doesnt raise light after 2 limpers. I put him anywhere JJ++ KQos+ AK etc, maybe 1010

After UTG check-raises I thought he hit his set, CO just called so I put him on KQs/AKx, maybe AA

From there I went with my reads, not many scarecards so cold calling flop, then trying to get as many bets in as possible, am I wrong somewhere?