In the scene, there are three spruce trees 6, 10, 16 meters high:

Name: Spruce_2_2_2012_corona
Version: 2012
Units: Centimeters
Dimension: 341 x 323 x 626
571 x 592 x 1049
547 x 562 x 1651
Polys: 960 547
XForm:Yes
Box Trick: Yes
Model Parts: 3
Render: Corona
Formats: 3Ds Max 2012
Material library: Corona, Vray (in addition to the Corona material library, 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 - 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.