At first I've masked the window panes. The maskings were cut in earlier steps with the window frames as jig.
Then I attached the decals. It's a good idea to paint the area for the decals with gloss.
Now I've sanded the copula roof to remove the grain fibres.
And this is how the caboose looks after the second paint session. This time I've used a brush.
You can still see wooden spots where the masking tape was.
And now the finished car in service.