Experimenting with a Green Screen

I was thinking of using a green screen for some clips in my music video, similar to Blur's music video for "Girls and Boys":

I used the same "studio" in my living room that I used for the test shots, but I changed the white background screen for a green one. I told my friend to stand still in front of the screen, and I moved the camera around (to create a floating motion sensation).

Then I edited to raw footage on Adobe After Effects, to remove the green screen. I downloaded some 90s stock footage and changed the background to that.

I think it looks quite good in the end, and I might use it in my final video (using my main actor against the green screen). I could take my own background videos on my dad's camcorder... using crowded placed like the center of Madrid (which would make the background more interesting and lively).