The other videos I did were on an iPhone. I don't like them so I'm going to use a more formal method for the next series. I'm going to use my daughter's camera. I now have four complete trains on the rails. Two can run at a time with the others parked in passing sidings.
Here's a picture I took of Norfolk-Southern's track running through Louisville. It is a highly used main line, and the rail is clearly brown. It's not an orange rusty color. The darker the rail the better I like it. This picture was shot in bright sunlight directly on it.
Also note that this color extends to the ballast below the rail/ The ballast is a mixture of white and bunch of grays. I'm going with straight gray, but will selectively stain some of it darker for more variety.