Here are photos of the progress so far.
Atlas Undecorated Kaolin Tank Car
Delaware Valley Undecorated 50' Airslide Covered Hopper
I consulted with Tru-Color and they suggested the Erie Lackawanna Yellow.
I was hoping the paint would cover better on the railings. I will need to remove those and hit them again with the air brush.
Overall, I think they look pretty good.
Side by side my tank vs. the Atlas 3-Bay Covered Hopper.
I believe it is close. Allen mentioned it is more green in tint and I can see that now better on the laptop. Of course, I'm color blind. So, close enough for me. I assume I will weather these cars which will hopefully make the paint schemes match better.
Speaking of painting, what do you guys use to hold your models when painting?