Some 25 PLO hands ... feedback requested

[TheSalche]

Hand 1: Villain is a regular at 25 tables, he's no donk by any means. Do you bet this river?

Party Poker Pot-Limit Omaha High, $0.25 BB (10 handed) converter

UTG+1 ($29.10)
UTG+2 ($19.60)
Hero ($33.45)
MP2 ($75.30)
MP3 ($25)
CO ($21.75)
Button ($8.68)
SB ($10.90)
BB ($24.75)
UTG ($41.75)

Preflop: Hero is MP1 with 8[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/club.gif[/img], 6[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">1 fold</font>, UTG+1 calls $0.25, UTG+2 calls $0.25, Hero calls $0.25, MP2 calls $0.25, <font color="#666666">2 folds</font>, Button calls $0.25, SB completes, BB checks.

Flop: ($1.75) 5[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(7 players)</font>
SB checks, BB checks, <font color="#CC3333">UTG+1 bets $1.7</font>, UTG+2 folds, Hero calls $1.70, MP2 folds, Button folds, SB folds, BB calls $1.70.

Turn: ($6.85) 4[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
BB checks, UTG+1 checks, <font color="#CC3333">Hero bets $4</font>, BB folds, UTG+1 calls $4.

River: ($14.85) 4[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
UTG+1 checks, Hero checks.

Final Pot: $14.85

Hand 2: Did I overplay this bottom set? Should I not raise the flop, and wait for a non-scary turn to put in a big bet?
Party Poker Pot-Limit Omaha High, $0.25 BB (9 handed) converter

Hero ($20)
CO ($44.06)
Button ($25.45)
SB ($29.45)
BB ($43.55)
UTG ($26.40)
UTG+1 ($18)
MP1 ($22.17)
MP2 ($19)

Preflop: Hero is MP3 with 2[img]/images/graemlins/diamond.gif[/img], 4[img]/images/graemlins/diamond.gif[/img], 2[img]/images/graemlins/club.gif[/img], 3[img]/images/graemlins/heart.gif[/img]. Hero posts a blind of $0.25. UTG+1 posts a blind of $0.25.
UTG calls $0.25, UTG+1 (poster) checks, MP1 calls $0.25, MP2 calls $0.25, Hero (poster) checks, CO calls $0.25, Button calls $0.25, <font color="#666666">1 fold</font>, BB checks.

Flop: ($2.10) 6[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/heart.gif[/img], 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(8 players)</font>
BB checks, <font color="#CC3333">UTG bets $2</font>, UTG+1 folds, MP1 folds, MP2 folds, <font color="#CC3333">Hero raises to $6</font>, CO calls $6, Button folds, BB folds, UTG calls $4.

Turn: ($20.10) A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
UTG checks, <font color="#CC3333">Hero bets $13.75 (All-In)</font>, CO calls $13.75, UTG folds.

River: ($47.60) 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players, 1 all-in)</font>

Final Pot: $47.60