Who works in the V-Ray version lower than 3.1, be careful in the materials in the BRDF section is Microfaset GTR (GGX), if your version is older, than 3.1, then the BRDF field will be empty. Choose Blinn, Phong or Ward - which is preferable for you.
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.
The model is placed in zero coordinates. Units are millimeter. All file paths are deleted.