I think you're right adl it must be the saturation, the lighting is probably picking them up a bit too much. I will lower their saturation in photoshop. I was trying to capture the look of those old crayons that everyone used to have that are really bright and gaudy.
Did no one notice the name of the crayons?!
Mayolas (instead of Crayolas) 
I'll post the results of the curtain's animation later today when I get to uni and see how it came out.
Thanks for the crits guys, it's really good to hear what people think of this cause I think it's the best work I've ever done.

Alan
Technical Director - Framestore
Currently working on: Your Highness
IMDB