0 FORTNUM & MASON Xmas Windows?

Here's a London Xmas mystery for you to solve...
When I saw the windows at Fortnum & Mason in October I was puzzled...
I went inside and asked the liveried doorman if these mushroomie, underworld, Hobbit-esque window decorations were for Halloween?
I was assured these were the Christmas windows!?
What?

Is it possible?

Mustrooms and moss + British jams..?

Giant acorns + tiny lamps...

Champagne amidst the leaves - this looks a tad Christmasy...

But silver champagne glasses full of green moss?

Huh?

Champagne and macarons, contact me, 9" x 11"
Please say it isn't so!

I can live with a Beefeater chess set - what a perfect Xmas gift.

Burgundy velvet slippers in the hay?

Hmmm...

French parfums amongst the moss..?

non non non!

Mustard under glass - is this a vision from the latest, darkest Harry Potter movie? Please tell me someone was pulling my leg.

This can NOT be Christmas at F&M in Piccadilly.

Doesn't one deserve a bit of dessert after that?

BONJOUR FORTNUM & MASON!