Beautiful and generous! The chandeliers are gorgeous and looks like it's a more expensive fixture and fills in with something else extraordinary.
This simple and stylish design makes it perfect for home and business decoration. It is a good choice for living room, dining room, bedroom, kitchen, bar, office, etc.

V-Ray versions are 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.