Making a "realistic" collage

This is an assignment I got in Petru's Visual Language class. It was actually supposed to be somewhat modernistic and full of symbols but I thought this approach would be more fun for me.

A challenge here was that I didn't have a tripod and people wouldn't move, so I couldn't do a master shot and then just edit stuff in. The shots were handheld from different angles and were blended together in post in the free program paint.net. I also used a plugin to help me remove the greenscreen. Eventually I used the shot with the two girls as a master shot.

The gallery above shows different versions of the composition. Notice how important the lighting is. Below is the final image. I desaturated most of the images to make them blend better. Didn't pay too much attention to masking stuff perfectly because it wasn't required for the project at all.