Hand 1: Only thing I see wrong is that you didn't cap it on the turn. I wouldn't put anyone on a 5/8 or 8/10, and you still have the monster draw going to the river to scoop.

Hand 2: Although it seemed to work in reverse, I don't see the play by raising the turn as proper. No other naked A2 will fold, even to 2 bets. Most players look at their cards, see the best low and call down. Also, you have to know the flush is out, or at least hands that dominate yours for high. I just feel it's a risky move unless you know the players well.