GAIA acoustic wall panel by Blastation in polyester felt
https://www.blastation.com/products/acoustic-panels/gaia/gaia-a42#&tab=1 
Gaia is a sound absorber with four symmetrical parts representing the four elements: fire earth wind and water. Gaia means Mother Earth. The four elements can be combined in millions of different ways with an infinite range of possible combinations. Gaia provides the best sound quality in the room creating a colorful and inspiring atmosphere

The scene presents 4 combinations of panel arrangement in four colors + profile-lit gypsum panels (CoronaLightMtl/VrayLightMtl)

All objects are attached have logical names of materials and textures
TurboSmooth open

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

Those who work in V-Ray versions 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 suits you best