50 PLO SB preflop and postflop play 3bet pot

hy,
1)what do you think about the preflop play?
2) how do you play postflop and why?

PokerStars - $0.50 PL Hi (6 max) - Omaha Hi - 6 players
Hand converted by PokerTracker 4

MP: 62.68 BB (VPIP: 32.69, PFR: 17.31, 3Bet Preflop: 13.79, Hands: 52)
CO: 32.9 BB (VPIP: 33.33, PFR: 0.00, 3Bet Preflop: 0.00, Hands: 3)
BTN: 204.1 BB (VPIP: 85.71, PFR: 28.57, 3Bet Preflop: 25.00, Hands: 14)
Hero (SB): 100 BB
BB: 174.3 BB (VPIP: 72.00, PFR: 52.00, 3Bet Preflop: 28.57, Hands: 25)
UTG: 100 BB (VPIP: 18.18, PFR: 0.00, 3Bet Preflop: 0.00, Hands: 11)

Hero posts SB 0.5 BB, BB posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has K♠ 8♥ K♥ 5♠

fold, fold, CO raises to 3.5 BB, BTN calls 3.5 BB, Hero raises to 15 BB, fold, fold, BTN calls 11.5 BB

Flop: (34.5 BB, 2 players) 9♣ 5♣ 6♥
Hero checks, BTN bets 32.94 BB, Hero calls 32.94 BB

Turn: (100.38 BB, 2 players) Q♦
Hero checks, BTN bets 95.86 BB, Hero calls 52.06 BB and is all-in

River: (204.5 BB, 2 players) 8♣

Hero shows K♠ 8♥ K♥ 5♠ (Two Pair, Eights and Fives) (Pre 67%, Flop 8%, Turn 0%)
BTN shows K♦ 8♦ 7♠ T♦ (Straight, Ten High) (Pre 33%, Flop 92%, Turn 100%)
BTN wins 199.5 BB