Paint your figures all flat black first, this way if you miss a spot or two it will look like shadowing.  Then start with the lighter colors and end with the darker colors for the clothing and skin.  Always use flat colored paints.

Micro-Trains Grain Tower Build by Modelersguild.com

Oh I can feel it, the empire is growing. Granted it is Z scale yet that diminishes nothing in the [ ... ]

Hopper Weathering Clinic II
By Bill Mock
December 2009

So here's how those BN Hoppers turned out after the surface rust dried. Not bad. I'll [ ... ]