Donald, that's one of the reasons why I thought the title "Off Track" would fit. Maybe it's my sick mind, but having only the last wagons in focus was my part of my plan.
They are more "Off Track" then the engine.
Thanks for the comments.
I'm learning more and more every day.
I like the idea your showing, but IMHO I would of used the wide angle macro to increase the dof. The engine out of focus is a little unsettling for me.