Is tiny mountains of champagne silk a metaphor?

Yes, "tiny mountains of champagne silk" can be interpreted as a metaphor. It evokes an image of luxurious and delicate fabric, suggesting richness and abundance, similar to the way champagne is associated with celebration and opulence. The phrase likely conveys a sense of beauty and extravagance, using the concept of "tiny mountains" to emphasize both the texture and the layered quality of the silk.