We actually managed to create the characters and write them down on character sheets (which have far too little space for beliefs and instincts, which is a huge shame). They are all linked from my BW wiki profile.
We also played for a session’s worth, on which I will write a more comprehensive post when I am not taking a break between a lecture and a demo. In addition, I have built a mental relationship map, which I should sketch on paper and maybe even put online. A great way of preparing, it is.