Here's this month wallpaper, the download link to the various resolutions files it's here (for eligible patrons).
You can see part of the ceiling from the ancient basilica from the Sanctuary of Oropa. The Ancient Basilica is where the statue of the Black Virgin is kept.
The Sanctuary itself is a beautiful place, many of my pictures come from there from or the surroundings, you can see it depicted in some of my works. Plus, many nice hiking trails and walks start right from the Sanctuary, it's situated on the Alps, near where I live.
You can see more images and find more informations on the Sanctuary here.
The church ceiling itself is interesting because of the decorations and the white "stars". The painted plaster is dotted (I think it was "hammered", small parts were removed to produce the starred effect). That, combined with the different hue paints and the lights creates a very nice effect.
As a wallpaper it's nice because of the black space for icons and stuff, and because of the framing that suggests a window "peeking" on another place.
Remember the resolutions:
-For quad-HD monitors and the like: WQHD – aspect ratio 16:9 – resolution 2560×1440
-Full HD: FHD – aspect ratio 16:9 – resolution 1920×1080
-For 16:10 screens: WUXGA - aspect ratio 16:10 - resolution 1920x1200
-For tablets and 2-in-1: “Cut” WQHD – aspect ratio 3:2 – resolution 2160×1440
-For "Traditional" 4:3: UXGA – aspect ratio 4:3 – resolution 1600×1200
-For 5:4 monitors: SXGA - aspect ratio 5:4 - resolution 1280x1024
If you want other resolutions or aspect ratios, just ask away!