This could be a tricky one and I'm probably going to get hate just for suggesting it, but under TWYS are we supposed to assume every image depicts the Northern Hemisphere (Southern Hemisphere aurorae are known as Aurora Australis.) with little to no in-image information proving such?
I think the natural phenomena should be moved to occupy aurora to avoid conflict with TWYS guidelines.
aurora should be split into a separate character tag, and could probably use some cleaning. As a character tag there are a good 20 or so different characters shown, not counting the eight-ish images that appear to be under the tag due to depiction of the natural phenomena, not any individual character.
Updated by hslugs