Oh, oh, oh this is one of my very favorite collaborations!!! When Julia put out a call for summer collaborations, I raised my hand really high for a Witches one. I bought a Fabriano notebook and made my pages and sent it to her to finish. And when it came back last week, I was all the heart eyes looking through it. I love it and I loved working on this with Jules. 
Take a look at this stop motion of the full journal: