whether it's just or ignoble, what is your OC's core tenet that drives them in all that they do? does this principle ever change over time as they grow and mature or is it unwavering and resolute in nature?
was there any aspect of your OC(s) that you struggled with settling on, whether it was a character trait, a piece of their lore or just a visual design component?
instead of a general theme, is there any songs you have in mind for your OCs when it comes to specific feelings or emotions? (i.e: a song that makes you think of them when they're angry, happy, hopeless, etc etc)