Keying exercise - AE

In our Post Production classes our teacher is trying to show us all the tricks we can do in After Effects. I have to say that I struggle a lot with this software but it is a really powerful tool to edit and produce videos.

We shot some footage in front of a green screen last week and today we had to key it and get some good results. That also required some mask usage and other stuff. It worked for me as well^_^. Tutorial on changing the video speed and color overlays/silhouette look followed.