Help in Character Development

Over at tumblr, I reblogged a post where people ask about my characters and I have to fill it up. And honestly some of them don't have proper back-stories yet so it would help a lot if someone drops an ask. Some characters can be found in my gallery, and if you don't know the name you could just link a deviation (though you have to replace the dots with something else since links aren't directly accepted in asks). Thanks for your time!