The void is supposed to be eating all of the universe and all of the time, not just Rivellon.
And thats no black hole or its accretion disk either. Or a maelstorm.
Thats a colorful, nice, shiny spiral... thing. That generally looks like a spiral galaxy.
Although it isnt, of course, since there are no stars in it, just nice shiny color ... smudges.
And there are stars in the background - of course.
I was expecting something like a black hole, originally.
But its probably not a big deal since most of the customers wouldnt know a difference between... any of these things. (there is such a nice analogy i could use to illustrate it better, such a shame i cant use that, for decency sake)