In general preflop is just awful. Postflop is better, but you don't bet enough. And buy-in full, you don't get full implied odds with this buy-in, for example if you raise with TT and someone reraises you, you are to short to play for set.
More specific.
Hand1. Bet at least 4BB if you want to steal blinds, 2BB is awful. And fold to reraise without specific read, with a caller it is a bit better, but still your big mistqke is small raise.
Hand2. I would fold or raise KQo in this position 50/50. Otherwise fine.
Hand3. Preflop is awful. I like to isolate people who do it with one more raise. You annonce that you have a weakish hand a reopen the betting.
Hand4. Reraise preflop, bet more on every street.
Hand5. RAISE MORE PREFLOP. You don't want to play AKo in a multiway pot OOP. If you can check this flop only to check-raise big.
Hand6. Fold it preflop in this position. It is playable only on CO and OTB.
Hand7. Fold preflop, raise more on flop.
Hand8. I would probably reraise this weak raise preflop, but calling is ok too. Postflop is ok.
Hand9. Raise to 4BB preflop (personally I prefer 3.5BB), check turn, check/fold river.
Hand10. 4BB preflop. More on flop, check-fold after this bad turn (call on turn for set value).