The scene contains a model of the Mason sofa from sofa.ru, pillows, materials corresponding to the following colors of the sofa: Mason Velvet Light, Mason Velvet Yellow, Mason Velvet Emerald, Mason Velvet Blue, Mason Velvet Plum, Mason Velvet Light Grey, Mason Velvet Ocean. Cushion covers: Kats Berries, Kats Dark Blue, Kats Tiaga, Funky Blue.

The model has the correct geometry and UVs, texture maps and materials with unique names. Manufacturer website: https://www.divan.ru/ 

For Corona render, it is recommended to install a version of at least 1.5, since the glossiness of materials is configured taking into account PBR