2 River AI bluffs. Thoughts?

[Law Player]

Hand 1. Based on the way the hand was played I think giving up is a fairly good play. Given the aggression of your opponent I could see him calling back your 3bet with aa, kk, qq, or even jj. Given your aggression he is probably not folding any madehand/over pair. I also think he will have a hard time folding TPTK.

Hand 2. I think it is a very good solid bluff. Given the fact your opponent didn't 3bet you, given his aggession, your opponent doesn't have ak. He could possibly be floating your flop bet with a king. However, given your river cram and the ace falling I think it was a very good bluff. Villian also calls back two barrels with 88, 99 and the river cram would force a fold.