Value bet this river?

[Isura]

I didn't realize this was a nl50 table until this hand. No stats or reads. Easy value bet on the end?

Party Poker No-Limit Hold'em, $ BB (6 max, 6 handed) FTR converter on zerodivide.cx

saw flop|<font color="#C00000">saw showdown</font>

BB ($34.54)
<font color="#C00000">UTG ($47.65)</font>
MP ($134.61)
CO ($191)
<font color="#C00000">Hero ($47)</font>
SB ($47.25)

Preflop: Hero is Button with K[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/spade.gif[/img]. SB posts a blind of $0.25.
UTG calls $0.50, MP calls $0.50, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $3.5</font>, <font color="#666666">2 folds</font>, UTG calls $3, MP folds.

Flop: ($8.25) 4[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/club.gif[/img], T[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
UTG checks, <font color="#CC3333">Hero bets $7</font>, UTG calls $7.

Turn: ($22.25) T[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">UTG bets $7</font>, Hero calls $7.

River: ($36.25) 8[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
UTG checks, Hero checks.

Final Pot: $36.25