For close-ups I recommend applying the TurboSmooth modifier to the object stabilized moss.
Included in the following collections:
Decorative walls – https://3dsky.org/collection/shared/5080875
Name: Decorative_wall_240
Version: 2013
Preview: No
Units: Millimeters
Dimension: 6000.0 x 122.82 x 3000.98
Polys: 188 350
XForm: Yes
Box Trick: No
Model Parts: 2
Render: Corona
Formats: 3Ds Max 2013 OBJ