Wow! Those are all great! Especially Kahvi (but she's one of my favorite characters anyway so it's hard not to like.)
My only two thoughts would be:
1. One-Eye looks great, but for some reason I think it would be neat to use a portion a little higher up on the background. Maybe have the lake at his eye level so you get the horizon and mountains in the background. But if you did that it might loose some of its contrast and emotional impact.
2. What is on Leetah's head?! ([size=9:185270f3a6]Looks like bird poop. :( [/size:185270f3a6]) Where is that picture from?