The archive contains 2 sets of seamless textures for tulle and curtains. For the curtains, the 27 base colors of the original Fidivi Class fabric have been created. The top of the curtains is not connected in a straight line. When rendered from bottom to top, the curtains will look natural.
Website: https://www.fidivi.com/tessuti/collezione/class 

polys: 393 436
verts: 395 676

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