Preshading

Simple example of military vehicle preshading. First, built model was overall covered with Mr. Surfacer. Next I applied preshading with rusty color of Humbrol 113 - stright lines at concave and convex edges and whole chassis.

Next step is to put base color. As first I used desert yellow Humbrol 94.
With it I filled bright fields between preshading. Then with thin layers of the same color I painted over preshading. Thinness allows to regulate visibility of preshiding.
Finally with matt lien Humbrol 74 I put some highlights at large areas.

 
 Achieved result is a nice base for fun with weathering;)