Serpentine rug by Moooi.

https://www.moooi.com/en/product/serpentine-carpet 

The colour gradient and shadow play create the illusion of a three-dimensional pattern.

Available in four colors:
- green yellow
- dark green
- red amber
- warm blue

Model for meshsmooth on render.

For Corona render, it is recommended to install a version of at least 1.5, since the glossiness of materials is configured with PBR in mind.