The scene contains a model of the Toulon Hoff sofa and four materials of different colours.
https://hoff.ru/catalog/gostinaya/divany/pryamye/divan_krovat_tulon_id9904089/?articul=80607472 
Dimensions: length = 2480 mm, depth = 1090 mm, height = 930 mm.
Sofa, number of polygons: 386,750
Decor (pillow, blankets), number of polygons: 100 830
- 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.