Hand 1:
I would 3-bet it..calling isn't a huge mistake though and folding is an option too.
As played, I'd c/r the flop...maybe c/c lead any turn.
As played I like your turn.
Hand 2:
Bet more on the flop?
I would probably b/c the turn. I hate giving free cards in this spot.
But I'd like to hear some thoughts why checking behind is good, especially given stack sizes.