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: 129396
Decor (pillows + blankets) number of polygons: 217686
– 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.