Use a nearly dry brush with a light grey or tan to catch the raised edges of rocks and rooftops, simulating sun-bleaching and wear.
One of the biggest mistakes in modeling is using uniform "sawdust" turf. How to build realistic model railroad scenery
Real Earth isn't flat. Even a "flat" prairie has subtle swells and dips. Use a nearly dry brush with a light
Placing slightly smaller trees or buildings toward the back of the layout (for example, using N-scale trees on an HO-scale layout) tricks the brain into thinking those objects are much further away. 4. The Art of Weathering How to build realistic model railroad scenery