10/20 live: Standard line with crappy 2 pair on draw heavy board??

[moneyshot]

For this hand, I have around 12K. I bought in for 3K about 30 minutes ago and have been hit by the deck. Had 3 huge drawing hand hit so I may have a rather Laggy image. Relatively loose passive table, except for villian who play a bit tight by very well.

Villian (around 5K behind) raise UTG + 1 to 40. Loose passive girl calls. I call on the button with 3-4 diamond.

BB (new to table) calls as well.

Flop: A 3 4 (2 spades plus diamond)

BB checks, Villian bets 110. Loose passive calls. I raise to 450. BB folds, Villian Calls.

Turn: 5 diamond. I now have a gutshot straight flush draw in addition to 2 pair.

Villians checks, I bet 750.

River: J clubs. Villian checks, I check behind.