Well, my piece is finally finished. Sorry it is so late. The quilt is slightly distorted in this photos since I still haven't stitched the back facings - they are pinned in place.
I took the theme quite literally and looked for words and phrases using "blanc". I came up with blancmange, Sauvignon Blanc and, of course, Mont Blanc. The mountain has a tunnel running through it so looked at photos of the entrance from the French side. This has a strange canopy which I have shown. Funnily enough, in my searches I came across a wine shop called "Filling in the Blancs". Hence the addition of the wine bottle and glasses.
A mixture of cottons and sheer fabrics appliquéd together. Free machine embroidery.