I don't know if I will have the time to shoot from the hint of dawn until sun break. The management usually wants us to get the train out of town as soon as possible.
I usually take these shots while my train is being fueled on the main line.
What about the foreground? Those tracks there bug me. Although, I don't know what I can do about them. Zooming in (by foot or lens) makes the shot bad, and getting higher is hard to do. I guess I could use more sky.
Somewhere in this computer I do have a shot like this with some predawn sky in the background. If I remember correctly, the line up on the service track was pretty ugly in that shot.