I would comment a couple of your hands (from the second session of hands), my reasoning might not be all correct as I'm still learning cash, however, I'm also playing 50NL for the moment, so questions/approach should be relevant.

Hand 1: Why are you betting the river?, villain has took a flush line do you want top pair to pay? The problem I see here is that only a better hand would call that river bet (except QQ).

Hand 4: With so many possible completed draws on the river (i.e. straight and flush) are you hoping for a JJ-QQ call?