What a challenge!! I was stumped on this one until I remember the camphor wood box Mum had and recalled it being filled with linens and things for her wedding. That gave me the idea of representing layers of fabric inside the box on the canvas.
Had a bit of a mishap though – turns out that glue isn’t the best way to adhere fabric to the canvas nor does glazing work very well over fabrics that aren’t flat. Oh well, another experiment to learn from!