Hand 1: if he had a draw he missed and won't pay you off
if he has AQ you're beat
if he has any combo above A9 he improved
if he has A3 he improved
you're only getting bets from A8,A7,A6,A5,A4,A2 which is 6x8 combos = 48
the following hands have you beat:
AK,AQ,AT,A9,A3,KT,K9,QJ = 6 + 8 + 6 + 6 + 6 + 6 + 9 + 12 = 59
I think K3 doesn't call a turn bet because he is afraid of the ace

so more comboes beat you unless we assume someone is calling you down with a pair of kings, but I wouldn't assume that without a read
there's also the possibility that he limped TT

all in all, I like your play

hand 2, UTG+1 has 50BB so you have to stack off with top pair