The first two aren't terrible.

Hand 1: Betting the dry flop, I think you are pretty good there quite often. The K could easily be a scare card for him, but it looks like he had AK/KQ and called with the overcards, which is just a little unlucky. Easy fold after the minraise.

Hand 2: Pretty easy hand. Easy cbet with overpair, and when he re-raises you have to shove. Again it's a really dry board, but I'd expect a short stack to sometimes do that with A8/AJ+/KQ/55/77 etc.

Hand 3: PF, make it a bit higher, maybe $1.20. A double barrel there is pretty spewy unless he's floating way too many flops. It will work sometimes, as you are repping QQ+ I guess, but far too often the donk will not lay down their 77/88/TT type hand when such a blank card appears on the turn. I wouldn't put this past being an overpair though, so it's as easy check, and get it in if you spike an A or K.

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