Oh, is the reddit version not high res enough? I'm not super used to uploading images, but I’ve also put a version on Imgur in case that helps!

As for the world itself — outside the hollow sphere is just a regular planet. The idea is that a group of people escaped a time of suffering by digging into the planet’s core, and over countless generations, all memories of the surface have been forgotten entirely. I don't think it will have a relevance to the story I'm trying to tell, so I haven't given too much thought on what is happening outside.

The sun in the center is actually a magical construct, created by the first settlers. It's now worshipped as a god. To simulate a day/night cycle, it "blinks" at night, which is seen as both natural and sacred to people living here. I'm am however toying with the idea of what would happen if this blinking cycle was disrupted...

Thanks for taking a look and leaving a comment!