In the scene an olive tree 6 m high.

Name: Olive_tree_8
Version: 2012

Units: Centimeters
Dimension: 682 x 642 x 580
Polys: 1189472
XForm:Yes
Box Trick: Yes
Model Parts: 1
Render: Corona + Vray
Formats: 3Ds Max 2012 OBJ
Material library: Corona Vray

Those who work in V-Ray versions lower than 3.1 be careful in the materials in the BRDF section there is Microfaset GTR ( GGX ) if your version is older than 3.1 then the BRDF field will be empty. Choose Blinn Phong or Ward – whatever suits you best.
For Corona render it is recommended to install a version of at least 1.5 since the glossiness of materials is configured with PBR in mind.