...unless it's for the interior decoration only of course!
Going by the interior she has picked for her previous aeroplanes, it will be quite plain and drab. Royal blue carpets & seat covers, cream walls and a bit of chrome plate in the toilet bowl. She has very modest tastes (eg. gaberdine mac, head scarf, green wellies and agricultural Land Rovers) compared to most of England's beloved "celebrities".
As Prince Phillip once told a VC10 captain "If it doesn't eat hay and fart, she wouldn't be interested."
BS
(Ex-32 'B' Flight)