Well, the strongholds/headquarters and such along with how the groups were planned out, haven't been really hashed out. It's pretty open for discussions, though Faes have councils, so they usually have representatives who elect one amongst themselves to be a member of a 'supreme' council, which has representatives from every Fae Race. An Arbiter stands ground along sessions, claiming the last word to all discussions. An Arbiter will be found in every race, though they may not always favor neutrality as one who is chosen as an Arbiter should. Human side could go with a presidency, where one man stands as a leader and figurehead, but passes any decision through a 'cabinet'. Green Rebels would have a setup that befits their name; simple organization, somewhat more of gang-like arrangements, where one calls the shots and has an executive crew who help him out make the calls. That sounds good?
I wasn't sure when your WIP would be complete. Also, I haven't really said anything about characters too much, mostly because I'm not sure if everyone else finds it okay. But if everyone's fine with it, I dont see a problem =P