See light at the end of the....track?

I decided that everything was too dark, it's going to be dark enough in the level without my props and assets been too dark as well. So I brightened things up, smoothed out the metal so it didn't look like bad concrete and then made some specular maps. It feels like I've been working on this for far too long but I'm pleased with the result. Now all I have to do is do the lower part and then maybe make some normal maps, but I'm not sure a normal map is needed for these.