One good way to improve your Go is to review games you've played, noticing what worked and what didn't, finding slack moves, whether or not the opponent noticed them, etc. It's best if you do it with someone substantially stronger than you, or at least your opponent, but it's still worthwhile if it's just you.
In that spirit, I present you with a commented game I played. No, really..I took a game which was on my computer, wrote down comments, showed some alternate sequences, etc. It's in a .sgf file.
There's something wrong with me.