This is a concept beta of a shattered moon to be inserted into images.
FULL DISCLOSURE: I'm mostly posting this now because it was in danger of being deleted by CivitAI. It'd been a while since I trained it, so it was time to 'poop or get off the pot' so to speak. I still like the concept, so someday I will put more time into it.
Addendum: In going through and testing a bunch of checkpoints, more often than not you get a moon, not a shattered moon. Which makes me wonder if SD is seeing "moon" in the prompt and just going with that.