Playing v Loose Opponents

The hand I want advice on is from the $1.5k GTD $25er, down to around 25 left, 9 paid. The villain has been at the table for 8 hands, limp folded pre on 1 and has called to at least the flop on 6 including the one below

Seat 1: Cash1987 - $3,605
Seat 2: moyul - $11,830
Seat 3: BndsO - $9,755
Cash1987 calls $150
moyul calls $150
BndsO raises to $450
alostshark folds
ForFoxSake folds
lullaby folds
Cash1987 calls $450
moyul calls $450
Dealing Flop
Cash1987 checks
moyul checks
BndsO bets $1,200
Cash1987 folds
moyul calls $1,200
Dealing Turn
moyul bets $3,975
BndsO raises to $8,105 (all-in)
moyul calls $8,105
moyul shows
BndsO shows
Dealing River
BndsO has Two Pairs: Kings, 2s
moyul has Flush, King high
moyul wins $20,185 with: Flush, King high

None of his other hands were showndown but I had see enough to begin to tag him as loose!!

This is the hand in question, can you comment constructively on my play please and suggest what you may have done....

Game Type: HOLD'EM
Limit Type: NO LIMIT
Table Type: TOURNAMENT
Money Type: TOURNAMENT CHIPS
Blinds are now $100/$200
Button is at seat 4
Seat 1: Cash1987 - $4,605
Seat 2: moyul - $18,860
Seat 4: alostshark - $3,325
Seat 5: ForFoxSake - $4,445
Seat 6: lullaby - $6,175
Moving Button to seat 5
lullaby posts small blind ($100)
Cash1987 posts big blind ($200)
Shuffling Deck
Dealing Cards
Dealing to ForFoxSake
moyul calls $200
alostshark folds
ForFoxSake raises to $800
lullaby folds
Cash1987 calls $800
moyul calls $800
Dealing Flop
Cash1987 checks
moyul checks
ForFoxSake bets $1,600
Cash1987 folds
moyul calls $1,600
Dealing Turn
moyul checks
ForFoxSake bets $2,045 (all-in)

Sorry, its more my c-bet that I was questioning, is it a good move, right size etc
Is it generally better to c bet less against looser opponents?

He didnt have AA by the way

Yes I felt I had too cos he seemed to like suited cards and I felt I could be ahead here.

He had 74s and I didnt hit the river and went out....

3way pot, i dont berate if you check here. I wud probably check here. Bet turn for value and pray to the gods they didnt hit 2 pair with ace rag.

If you cbet here you probably gonne get called 75% of the time. You're going to check the turn and fold to a bet on the river (depending what cards ofcourse), unless youre in a hero mood and put him on a busted draw.