Other than hand 2, they all seem pretty solid. I might consider c-betting the flop on hand 4, but checking is fine too on that dry board. On hand 2, I don't really like leading again, and I don't like check-folding. I think check-calling the turn, and checking with the intention of check-folding to a reasonable river bet is best here. I doubt a standard NL 25 donk is firing at you on both the turn and river with a hand you beat, and you're not going to get much more value out of hands you have beaten either.
Today was a pretty good day for me, nice rebound after not being able to catch a break over the last several days. Waited all session (played two sessions here, so all of the last 800 or so hands), to stack this donk on my right. I had been raising and 3-betting him all over the place (with the goods too, I'd already taken a decent pot off him with a set), and raised him in a blind battle with KK. He called with Qh3h and stacked off on the Th7hxQ board, and I held for once.