I had to delete the concept art image of Firefly that you’ve uploaded onto the Concept Art page. I’m sure you are aware of the DMCA Complaint that eOne gave to this wiki regarding Armadylan and the Wolfy Kids. Unfortunately, and I'm not sure if you know about this, but Firefly has been copyrighted as well, so just like that of the characters mentioned, we can’t add any concept art images or create any pages of the character.
I’m sorry to do this and give you this warning, but I have to do it for the safety of this wiki. There will come a time where this situation will be handled, but we can’t promise that this will ever be fixed.
Mostly that the books began to incorporate elements that were created for the tv-series, and not present in the books before that. Like the Pyjamasques suddenly having vehicles (almost) identical to those on the show, book counterparts for Night Ninja and Luna Girl, the totem animals getting a redesign. In short; it became a mix of the setting from the first 18 books and the tv-show.