I really like the image composition and treatment. One minor suggestion is to maybe try to reduce the glare off of the front train windows a bit. It seems a little to bright.
Very good shot. I like adding the color back to the train. Good depiction of the disappearing lines of infinity. They do a good job of drawing the eye into the picture. I agree with Eduard, the train windows need to be darkened. Another minor point is the cropping is a little too tight on the left side. Two minor adjustments, still a very good shot.