lol I tried to bluff him

[TheNewf]

As a life nit I have no idea how to run elaborate bluffs. Please help.

PokerStars Game #9762684683: Tournament #48888579, $300+$20 Hold'em No Limit - Level V (75/150) - 2007/05/05 - 14:39:24 (ET)
Table '48888579 11' 9-max Seat #9 is the button
Seat 1: KentyKent (3712 in chips)
Seat 2: stackinkids (5066 in chips)
Seat 3: patek3970 (6225 in chips)
Seat 4: Rabscuttle (1895 in chips)
Seat 5: Bjorn_I_Hi (1800 in chips)
Seat 6: jeff710 (1170 in chips)
Seat 7: SirWatts (4361 in chips)
Seat 8: aaaaaaaa (2895 in chips)
Seat 9: BrunoCarrico (7408 in chips)
KentyKent: posts small blind 75
stackinkids: posts big blind 150
*** HOLE CARDS ***
Dealt to SirWatts [Kh Jh]
patek3970: folds
Rabscuttle: folds
Bjorn_I_Hi: folds
jeff710: folds
SirWatts: raises 300 to 450
aaaaaaaa said, "i have t cal a 10 there vs u right?"
aaaaaaaa: folds
BrunoCarrico: folds
KentyKent: folds
aaaaaaaa said, "to call^^^^^^^^"
stackinkids: calls 300
*** FLOP *** [8s 6s 5s]
stackinkids: checks
SirWatts: checks
*** TURN *** [8s 6s 5s] [Qh]
stackinkids: checks
SirWatts: bets 600
stackinkids: calls 600
*** RIVER *** [8s 6s 5s Qh] [Th]
stackinkids: checks
SirWatts: ?

Turn bet fine? Follow through on the river? If so how much? I probably have a fairly tight image and villian seems semi-loose.