Glad you like it.
I have a question though. How will control of the elements work, exactly? For example, will each element user need to have the element present at their location for them to use? Like, say, would my water guy need to haul a flask around with water in case he ends up having to fight somewhere with no water readily available? And how will control work? Will it purely be a mental ability or something like we see in the Avatar animated series, where they control the elements via martial arts like movements?
Just looking for some in depth info before I start getting too many ideas about what my character should be like.