So here are some sketches more like brainstorming than anything really:
And I'm at this point right now:
So the Backstory would be something like, It was on a dark planet covered by tons of clouds that Eva and her family lived.
One day Good Gods thought illuminating the planet would help this poor population, which actually killed them all (such idiot gods), except one... Eva. She could survive thanks to a pact she made with this little demon so she could avenge her family by offering the demon humans to consume.
I don't know, your comments will help me build this character or throw it to the TRASH