Which manga should I work on?

I'm going to be publishing a manga on here soon, and i'm making two of them.
One is called 'Cavam' has ALOT of characters, the main characters are 12 year old Chyako, 8 year old Tiki,13 year olds Nikori and Tukushi and 12 year old Coco, and a very complicated storyline. It has alot of influence from Corpse party, Higurashi, and Dangan ronpa. Is isn't copying though, its original.
The second manga is called 'The edge of the world' and is about a zombie apocalypses. The main characters are 14 year old Aurora, 7 year old Beatrice and 13 year old Viola. Which one should I work on first?