Here are some links to websites where you can analyze your games for free. You should review it yourself without a chess engine. Then compare your notes to the computer assessment.
Load or paste your pgn file into the box on the right. The review game feature is awesome in it's clarity for less experienced players
A good quality analysis with chart and annotations.
Click Open pgn to load your game. Then click the analysis button to start the engine. Good for doing your own analysis with full annotation features.
Amazing AI chess analysis engine. Uses human like explanations and gives a full coverage of what is happening from many angles.
A detailed post about how to analyze with computer programs. This is an important subject so you can expect more on this in the future.
Have a recommendation leave it in the comments. I love to learn.