Interesting videos, but it would help if you had some pictures.
I'm not sure if after a nuclear disaster, there would still be bright green grass.
This is set 20 years after the nuclear disaster.This video is set 25 years after nuclear disaster, and it's in real life. Right at the radiation hotspot.http://www.youtube.com/watch?v=tK4mUHd6lC8&feature=related