For flat lay product photography an overhead camera rigging system with an HD monitor gives the Macro lens the flat, level shooting plane for tack sharp focus. We lit using 2 soft boxes and a quarter stop 48 inch scrim with a 3rd flash behind.
The sequins took a bit of light modifying, to maintain the jewel tones without blowing them out. We used foam core to create a box to channel the light.
Flat lay product photography requires one essential tool for setup: pins. Lots of pins, lots of foam-core layers and additional time. Spandex can be a bit of a wrestle due to the elasticity, but pinning does the trick.