I think this is a very thoughtfull idea. I think we could search videos that has two relative martial arts that are from the show at the time they are sparring against ,so that way we could find how each battle movement from each m.a. could be acted as a move for the element(imaging seeing a tai chi vs n shaolin kung fu sparring against ,while observing the battle of two of them ,we could look for each detail ,and when we spot each of them performing a diffrent move could ,we could try to think out what could those move represent for the (insert elements)? How could those moves have the same stragedy ingame?)