The archive contains 2 sets of seamless textures for tulle and curtains. For the curtains, there are 24 base colors of the original Designers Guild Manipur fabric. Each of the 24 curtain materials has 3 different color rendering settings. 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.designersguild.com/ru/fabric/designers-guild/manipur-oyster-fabric/p29613 

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.