Answer: Sequin fabric surface (macro)

What you're looking at

Sequin fabric is a staple material in the fashion and entertainment world, covering everything from party dresses and stage costumes to home décor and accessories. You'll spot it at clubs, on runways, and at celebrations wherever sparkle and glamour are needed.

When photographed at extreme magnification, sequin fabric reveals an almost alien landscape of overlapping metallic or plastic discs, each catching light differently. The individual stitching, the curved surfaces of each sequin, and the dense layering create a texture that looks completely different from what you'd expect when wearing or seeing the fabric from a normal distance.

Search for repeating curved surfaces, overlapping circular or disc-like patterns, and strong light reflections in macro photos.