A collection of paintings with circles by Helen Loom
Size: 170*50cm
Material: Merino wool
Design: Helen Loom

The model is under smoothing, TurboSmooth is open
Don't forget to enable Displacement in the Render Setup settings. For long-range angles, TurboSmooth and Displacement can be disabled

Links to the manufacturer's website:
https://helenloom.ru/shop/tproduct/564108597-133361386671-kartina-s-krugami-serii 
https://helenloom.ru/shop/tproduct/564108597-569256611591-kartina-s-krugami-goluboi 
https://helenloom.ru/shop/tproduct/564108597-532445578901-kartina-s-krugami-terrakot 

For Corona render, it is recommended to install a version not lower than 1.5, since the glossiness of materials is configured with PBR in mind.
Who works in a V-Ray version lower than 3.1 be careful, in the materials in the BRDF section there is a Microfaset GTR ( GGX),
if your version is older than 3.1, then the BRDF field will be empty. Choose Blinn, Phong or Ward – which is preferable for you