bluffing the turn and river when the ace hits

[tl65\]

I'm on about my second orbit at the table and haven't seen anything out of the ordinary out of my opponent. One question, would raising the turn be bad? Also, I'm obviously looking for comments on the turn and river.

Poker Stars
No Limit Holdem Ring game
Blinds: $3/$6
6 players
Converter

Stack sizes:
UTG: $142.70
UTG+1: $696.25
dragonwarior: $1330.85
Button: $499.55
SB: $955.10
BB: $959.45

Pre-flop: (6 players) dragonwarior is CO with :8s :8d
2 folds, dragonwarior raises to $22, Button folds, SB raises to $78, BB folds, dragonwarior calls.

Flop: :7h :4s :5c ($162, 2 players)
SB bets $96, dragonwarior calls.

Turn: :ah ($354, 2 players)
SB checks, dragonwarior bets $199, SB calls.

River: :9d ($752, 2 players)
SB checks, dragonwarior bets $600

So, what do you guys think?