W44: I don't like this. You shouldn't contact a group you're attacking if there isn't a special strategy like a tesuji. You're move is a tesuji move sometimes but there have to be some other stones to create shortage of liberties. In this situation a move like K7 should have been better.
W72: I Think D10 would have been bigger because it works together with you bottom left corner.
W88: This looks wrong to me because he (should) gets an easy life and moves into your corner at the same time. Maybe B5 instead ?
But the ko was really well done by you
