Another member of the large brush family is the 1í_í_Œ Round Foliage Brush. This brush will create numerous fantastic effects such as clouds, foothills, trees and bushes. By using this brush in conjunction with the other large brushes, you will save brush-washing time and lessen the amount of paint used. The Bob Ross landscape brushes are special brushes made from a blend of natural and synthetic bristles and shaped according to Bob's very precise specifications for the Bob Ross Wet-on-Wet TechniqueŒëŒå. Remember, ordinary brushes are not the same and can't create the same beautiful effects these will.