hand in winner takes all

[Komodo]

Hero 2915 posts BB 200 As 7d
Tenfour 1117
Williewilson 5915 posts SB 100

tenfour folds
wilson calls 100
hero raise 200
willie calls 200
flop 5 [img]/images/graemlins/spade.gif[/img] 2 [img]/images/graemlins/club.gif[/img] Q [img]/images/graemlins/diamond.gif[/img]

Willie bets 200
hero calls
Turn K [img]/images/graemlins/spade.gif[/img]

Willie check
hero Check
River 3 [img]/images/graemlins/heart.gif[/img]
Willie goes all-in
Hero folds

Should I have bet more before the flop?
His bet after flop could mean anything. Probably not a 2 but maybe a 5,Q or just an information bet.
Turn was tricky. Checking there is like folding. Should I have tried to bluff there?

This is my first hand post, so i hope it is readable.