What are your opinions on this play, considering that this is within the first 10 hands I saw opponent play, and haven't noticed him in that time.

I call the min raise because of my OESD, and the turn bet is either weak, or is asking for a call. If he was wanting a call on the turn though, wouldn't he value bet the river?

Does my river bet seem out of place with my actions - particularly does it look like I have an A here?

EverestPoker Game #1327467481: Table Berlin-18 - $0.25/$0.50 - No Limit Hold'em - 16:18:20 - 2007/03/30
Seat 1: Gaulede12 ($9.50)
Seat 2: S@m35 ($49.50)
Seat 3: flyingPeng1 ($78.44)
Seat 4: xav3314 ($15.15)
Seat 5: popy69 ($8.25)
Seat 6: Nicola82 ($30.29)
Seat 7: Jelmersma ($50.00)
Seat 8: greece666 ($19.85)
Seat 9: XMarsX ($46.50)
Seat 10: Reloaded2 ($50.00)
Jelmersma posts the small blind of $0.25
greece666 posts the big blind of $0.50
The button is in seat #5
*** HOLE CARDS ***
Dealt to flyingPeng1[Td Jc]
XMarsX folds
Reloaded2 folds
Gaulede12 folds
S@m35 folds
flyingPeng1 raises to $1.75
xav3314 folds
popy69 folds
Jelmersma calls $1.50
greece666 folds
*** FLOP *** [Ad Qh 8d]
Jelmersma checks
flyingPeng1 bets $2.75
Jelmersma raises to $5.50
flyingPeng1 calls $2.75
*** TURN *** [Ad Qh 8d] [Qd]
Jelmersma bets $5.50
flyingPeng1 calls $5.50
*** RIVER *** [Ad Qh 8d Qd] [As]
Jelmersma checks
flyingPeng1 bets $20.00