In the scene there is a model of the Aront Mini corner sofa and four materials of different colors.
https://www.divan.ru/product/divan-uglovoj-aront-mini-velvet-light 
Size: length = 1860 mm, depth = 1510 mm, height = 730 mm.
Sofa, number of polygons: 129,396
Decor (pillows + blankets), number of polygons: 217,686
- Who works in V-Ray version 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 is preferable for you.
For Corona render, it is recommended to use version no lower than 1.5.