Inside the stair

I didn't really get out today as I was waiting in for a parcel (which came eventually), also to get my gas meter changed (which didn't happen at all). So all I did was to go to the post box a few yards away. By that time it was getting dark and I still needed a blip. I looked up from the ground floor of my stair up to the cupola, and here it is.

Back-blipped from 14th November.