I was thinking about how in the 1999 Watership Down series Blackberry was originally going to be designed as a Dutch rabbit (you can read a thread about it here: https://www.tumblr.com/raine-of-auroria/705563718465060864/just-wanted-to-add-to-the-table-with-more-early?source=share), and then I really wanted create a WSD Dutch rabbit OC

So here's a doe named Boysenberry, another escaped domestic rabbit who decided to live on the down instead. She's not specific to any particular incarnation, she exists in the book and all the adaptations