The scene contains a model of the Allaum Linia sofa, divan.ru, and four materials of different colors.
https://www.divan.ru/product/divan-uglovoj-allaum-linia-pink 
Dimensions: length = 2140 mm, depth = 1520 mm, height = 940 mm.
Sofa, number of polygons: 170,654
Decor (blankets + pillows), number of polygons: 306 652
- Those who work 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 - what is preferable for you.
For Corona render it is recommended to use version not lower than 1.5.