saw this on the league FB page

http://delectablered.artstation.com/portfolio/leona-and-diana

loved it.

I think Leona and Diana should have a Yin and Yang skin since they're opposing Solari and Lunari factions in league, yet they're both part of the bigger cosmic picture that was once united.

Diana's sword could easily be used as one of the half symbols due to its curved'crescent shape. Not sure where the other half would fit on leona.... maybe her shield.... but I know it can go in there somewhere on her model.