Hey, 3D+Flash GCSE projects ftw! I never posted my GCSE project on NG, mainly cos of filesize, but it makes a much better impression on the mods than print.
If you modelled all that stuff from scratch then that's pretty good. I have to say though, I'd like to see some more experimental stuff from you. If you're given Recycling as a stimulus, it's ok to do like a PSA type thing like this, but personally I'd like to see something a little more abstract. GD is about getting a message across, but it can be a little less blunt than this.
Anyway, don't worry this'll get you good marks as long as you have good coursework to back it up. Basically just reverse engineer the whole thing and show it step by step :P
Good luck with future projects.