Add detail to boxcars with open doors.  Add some crates, boxes, tarp load, or figures to your boxcars that have open doors.  There are even lumber, barrel, or bag loads you can place into an opened boxcar.  You can even add a fake wood flooring to add more detail.

Micro-Trains Logging Camp Cars Build by Modelersguild.com

Working with my brother-in-law has its challenges. It doesn't always go so well, some of you [ ... ]

Hopper Weathering Clinic III
By Bill Mock
January 2010

OK, I gave the inside of these hoppers a wash of Engine Black below the coal line. They [ ... ]

My layout is called the GREAT WEST ROCKY MOUNTAIN, KENORA-SUDBURY RAILROAD COMPANY. The general scenery is modelled on my hometown, Kenora, Ontario as [ ... ]