$Freeroll NLHE MTT Turbo: Is my betsizing okay?

The hand played out at pokerstars PokerSchool Open Skill Leagues freerolls. About 2000 or something players left.

http://www.boomplayer.com/sv/poker-hands/Boom/21004122_FB137A09BE

I didn't rule out the possibility of him having a strong hand, since I had played a hand earlier against the same player, where he limped in middle position with QQ, then checking a dry flop with all undercards to his pair.

I wanted to get as much value as I could out of villain. Is my bet sizing okay, or is there any changes preflop, on the flop, turn or river to my betsizing that you would propose? No other reads on villain, except that he seems to play quite passive sometimes with strong hands.

Your iso pre is on the smaller side. I like making it 560 (3.5x) over 1 limp in these types of spots. It's unlikely the limper is folding anyway so you are getting more value + you price out the BB from calling.

Go like 700-800 on the flop. This is a very, very wet board and we do not want to give our opponent great odds to call with a wide range of draws that connect to him on this flop.

Turn sizing is good.

Love the river bet sizing. We are looking to induce crying calls in this spot against a very weak range.

Agree with trent32la for pre flop flop and turn sizing. River I think you can shove - you have less than pot behind you, and you will get called by all worse two pairs and maybe even a one pair hand. It's a free roll, and you expect people to get sticky with bad hands, so why not go for max value. If he has the nuts, it doesn't matter if you bet small- he'll just raise and you'll have to call, and besides I don't think we're very worried here given his line.

So I think shove for value since freeroll where people are sticky, and his line of check calling and limping preflop seems like he could be a bit of a calling station. You want max value from him

Thanks for your replies
Yeah on the flop I really wanted him to call with his worse hands, but I guess he would still call a bigger bet with any of the draws he could have. I think my biggest leak atm is what to bet on the flop and IF I should bet the flop.
I felt he was weak on the river so I tried betting really small to get him to call with one pair type of hands, since I feel like many players in freerolls get scared of all-ins and fold way too often.

Bet more preflop. I'd bet 3xBB + 1xBB for every limper.
Flop and postflop, considering that the board is that wet and you hit TPTK I'd bet more, you get a lot of value from his draws.