Your character development is excellent. I don't find the world completely immersive as of yet, but the array of characters more than make up for it. I find it kind of funny that instead of a token female you've done a token male. Although, I have a feeling that the skin splitting dude might get fleshed out at some point (I hope so, he intrigued me) I hope you have you have a good plot arch planned out. It seems like you know where this is going, but it seems to be the major pit fall on these sites. A story starts off good, but it never really goes anywhere and the story falls apart. I'm excited to keep reading.
*Chuckles* i noticed i managed to do the token male after I finished making these 5 characters. It wasn't intentional, but I guess unsurprising. I like strong leading ladies (Buffy for example) when I realized that I did it I debated changing one of the ladies to a guy, but already have too many story lines that would mess up. So what the hell.
There is one more character coming, and its a he.