Analysis

The first game seems to have been largely good. Gave the opponent an opportunity to gain a pawn by exchanging at move 16.

The second game was a completely disaster. Should not have long castled with the
pawns advanced.

The third game had missed opportunities. At move 24 it would have been better to take the rook
and allow the queen infiltration.

The rook sacrifice was of course unsound. It "worked" but lost on time.

Spent about 10 minutes analyzing.