Hmm... I think this is a case of "the ride is made for the video, not vice versa...". The ride itself was great, the video even better. But once you start turning the camera, it doesn't look finished, so to say. There were gaps pointing into other rooms, the roof was a mess, and the textures were kinda screwy in places (left wall of the first room...). Though, the concept is brilliant, and you did it very well. It's just that a little extra effort could have made it even better. Adding a little bit of terrain, and a forest or so plus setting a different custom environment for it would enchance it greatly.
A 10/10 for the video, the concept and the idea in general, but 7/10 for the execution of it.
I'd really, really like to see more ghost trains from you. It suits you just perfectly, and I believe that you could do it really great, with the experience from this and your knowledge of scary stuff.