I think I made a mistake with the odds calculations. Calling 450 to win 1350 is odds 4 because you should also include your own bet in the calculation. Similarly calling 450 to win 2250 is odds 6, not odds 5.

Great post, we all learn a lot from these hand discussion style posts, so keep em´coming:-)
I don’t like your 450 chips bet on the turn. It gives him good odds to hit the full house he was aiming for.
If he puts you on the made flush on the flop and he has trips 5, then he has a 34% chance of winning the pot on the flop. He has to call 450 to win 1350 on the flop, which is odds 3, so his flop call was correct. On the turn he has a 23% chance of winning the pot, and he has to call 450 to win 2250. He needs odds 4,3 to justify a call on the turn, and you offer him odds 5, so again he is making the correct call. I you instead went all in on the turn he would have to call 1300 to win 3100 chips which would not have been good enough odds for him to call.
Having said all this I probably would have checked him all the way to the river thinking there was something sneaky about his check/calling:-)
I guess we can all learn more….