PT said Villain is 34/2 for 46 hands.

I don't like my turn bet, i know it's too small. Should i bet more or just check because of possible flush? What should i do on the river?

Poker Room skin
Pot Limit Holdem Ring game
Blinds: $0.15/$0.25
10 players
Converter

Stack sizes:
UTG: $23.35
UTG+1: $32.85
UTG+2: $30.65
MP1: $38.05
MP2: $5.35
MP3: $12.45
CO: $8
Button: $31.15
SB: $23.75
Hero: $28.40

Pre-flop: (10 players) Hero is BB with
UTG folds, UTG+1 calls, UTG+2 calls, 2 folds, MP3 calls, CO (poster) checks, Button folds, SB calls, Hero (poster) checks.

Flop: ($1.5, 6 players)
SB checks, Hero bets $1, UTG+1 calls, UTG+2 calls, 3 folds.

Turn: ($4.5, 3 players)
Hero bets $2.5, UTG+1 folds, UTG+2 calls.

River: ($9.5, 2 players)
Hero checks, UTG+2 bets $5, Hero calls.

Results:
Final pot: $19.5
UTG+2 shows 4S 4C
Hero shows 9D AD