In the scene, a willow tree 18 meters high:

Name: Salix_1_2014
Version: 2014
Units: Centimeters
Dimension: 2000 x 1900 x 1800
Polys: 1546106

XForm:Yes
Box Trick: Yes
Model Parts: 1
Render: Corona
Formats: 3Ds Max 2014, OBJ
Material library: Corona, Vray (in addition to the Corona material, the archive also contains a material library for 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 - whichever 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.