The selections you made should give you a broad spectrum to learn from. If I had signed on for 3 that's what I would have done too.
I've gotten feedback on the fins as portending male AND female depending on the opinion giver...
Obviously, my hope is female, although my wife wants a male
... Her b'day gift, her prerogative
.
I had your 53 fish pegged as 75% likely male jugding by the pecs, but with them pulled 1/2 way back it can easily be deceptive. The BODY on 53 has a nice thick female look to it, so I concluded in the end that it was a tossup
. I think a lot of us will still have a guessing match on sex running at the conclusion of the contest, as they won't really be sexually mature yet and we may not be able to tell with certainty.