I'm winning a good amount but I think I could be doing better.

Hand 1

Party Poker Pot-Limit Omaha High, $0.25 BB (9 handed)

MP2 ($23.4)
MP3 ($39.9)
Hero ($24.65)
Button ($79.6)
SB ($23.5)
BB ($24.25)
UTG ($82.29)
UTG+1 ($14.5)
MP1 ($49.05)

Preflop: Hero is CO with , , , .
UTG calls $0.25, 2 folds, MP2 calls $0.25, MP3 calls $0.25, Hero calls $0.25, Button calls $0.25, SB completes, BB checks.

Flop: ($1.75) , , (7 players)
SB checks, BB checks, UTG bets $0.25, MP2 calls $0.25, MP3 calls $0.25, Hero calls $0.25, Button folds, SB folds, BB folds.

Turn: ($2.75) (4 players)
UTG bets $2, MP2 folds, MP3 calls $2, Hero folds.

River: ($6.75) (2 players)
UTG bets $6.45, MP3 folds.

Final Pot: $13.20

Results in white below:
UTG doesn't show.
Outcome: UTG wins $13.20.

I'm not drawing to the nut boat and I don't think my hand is good how it is so I decide to fold. It would have been a tough river decision if I called. Thoughts about turn and river if I had called?

Hand 2

Party Poker Pot-Limit Omaha High, $0.25 BB (9 handed)

UTG+1 ($22.9)
MP1 ($37.15)
Hero ($25.15)
MP3 ($79.1)
CO ($23.25)
Button ($23.75)
SB ($85.99)
BB ($14.5)
UTG ($49.05)

Preflop: Hero is MP2 with , , , .
2 folds, MP1 calls $0.25, Hero calls $0.25, MP3 calls $0.25, 1 fold, Button calls $0.25, SB completes, BB checks.

Flop: ($1.50) , , (6 players)
SB checks, BB checks, MP1 checks, Hero bets $1.5, MP3 calls $1.50, Button folds, SB folds, BB folds, MP1 folds.

Turn: ($4.50) (2 players)
Hero bets $4.3, MP3 calls $4.30.

River: ($13.10) (2 players)
Hero bets $12.45, MP3 folds.

Final Pot: $25.55

Results in white below:

Outcome: Hero wins $25.55.

I know i should have raised preflop but I'm working on that after I am more comfortable with my postflop play. My mind is too much like holdem when I'm the aggressor preflop. Is this a situation I should have checked the river to induce a bluff since I don't put him on J9?

Hand 3

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

SB ($32.85)
Hero ($25)
UTG ($38.25)
UTG+1 ($24.4)
UTG+2 ($29.37)
MP1 ($29.7)
MP2 ($13.45)
MP3 ($14.05)
CO ($25)
Button ($70.7)

Preflop: Hero is BB with , , , . CO posts a blind of $0.25.
2 folds, UTG+2 calls $0.25, MP1 calls $0.25, MP2 calls $0.25, MP3 calls $0.25, CO (poster) checks, 1 fold, SB completes, Hero checks.

Flop: ($1.75) , , (7 players)
SB checks, Hero bets $1.75, UTG+2 folds, MP1 folds, MP2 calls $1.75, MP3 calls $1.75, CO calls $1.75, SB calls $1.75.

Turn: ($10.50) (5 players)
SB checks, Hero bets $7, MP2 calls $7, MP3 calls $7, CO folds, SB folds.

River: ($31.50) (3 players) YATZEE!!!!
Hero bets $16 (All-In), MP2 calls $4.45 (All-In), MP3 calls $5.05 (All-In).

Final Pot: $57

Results in white below:
They both had trip 8's
Outcome: Hero wins $56.99.

I hate low sets! I wasn't too sure what to do on the turn and river (except that I hit my quads this time). 2 out of 4 of my opponents were short stacks so If they had the boat, I would assume I would have heard something by then.

Ok I'm not a PLO pro by any means but here goes anyways.

Hand 1: I like your fold, on the flop there really are only 4 cards that truely make you happy, the board pairing kings isn't going to get you anywhere. This is not a hue pot, good laydown.

Hand 2: I also need to work on my agression in Omaha both PLO and O8, I think you know that this is a raiseing hand other than that, I think you played it well, enough. You probably should have either made a post oak bluff or checked the river, to induce a bluff.

Hand3: After getting that many callers of your flop bet I would probably not have bet so hard on the turn, I would probably have checked the turn, when the quad card hits yeah I think you hand is good.

hand 1, seems OK to fold that. Marginal call and you need to be pretty certain that someone will pay you off and/or no-one has a KK or top two. A few too many worries for me, so a decent fold.

hand 2: Raise preflop, consider a check-raise on the flop if you think someone will bet for you. On turn, obv. bet pot. On river, I usually bet a bit less than the pot, perhaps 1/2 pot, and hope he'll fish in with two pair. Makes it easier to lay down to a big raise too. Full pot bet is not so bad either, but i think he's very likely to be on a flush draw so I'm looking to give him a reason to CALL now that he's missed. If he has a weedy 2 pair, or even a little overpair, I want him to put in another $3 or so for a showdown.

hand 3: Agree with rhound, I don't like that turn, with such a multiwayer. Looks like 85 or 83 are possible, and so I'm prepared to give this up if anyone takes off on a big bet. River play is good.