Coaster Concept and Colour Scheme

While talking through a few concepts today, an idea around a roller coaster was formed in order to make the place seem more like an amusement park.
I think a roller coaster could fit in to our ideas quite well, and the tracks could even maybe be seen trough out the building as the player goes through.

here's a revamped colour scheme and the concept for the roller coaster idea...





I've also had an idea of the roller coaster crashed and wrecked either inside or bursting out of the cage it's in. I'm currently researching for crashed 'coasters for reference, so any pictures that anyone can find would be very helpful! Let me know what you think and I'll try to post a concept tomorrow.