Yadaaaaa.... How I forget to make such a quiz. I always thought everything related to anime is copyright protected. Amazing quiz anyway, nominated (◍•ᴗ•◍)❤
There are a few things that's public domain. Most isn't that's why some of the anime titles are a bit obscure, but I think it's fine. The most you'll fine on Wikimedia is just cosplay, but there are some exceptions.