We be in Harry Potter houses now

Some Harry Potter inspired work again.
Back Story:
My school recently started a Harry Potter club in which me and my friends participate. We were all sorta except and then I drew us doing stuff dressed up. All of us actually have the scarves now so I'm really excited for Christmas and all the cold weather lol.

In this picture:
---Green,
---Red,
---Yellow,
---Blank, no house yet