Terrain Sculpting

I am trying to make sets for movies and such but the terrain doesn’t look that good. any tips or suggestions?

Try using a height map. This guy has a tutorial for extracting height maps from Google Maps…

Yes there’s tons of free heightmap images for download or easily created in Blender with clouds! You can use a image plane, subdivide and use a displacement modifier. Bam!!..terrain, well actually Landscape!