What GGMF or Bullet Angel Kai‘sa could be

For a long time I was wishing Riot could give us skins contain elements of Adepta Sororitas，we got Cadian style IG（Commando）， we got SM and even some CSM（Steel Legion Garen/Woad King Darius looks like a wolf lord from Fenris to me and we got Dreadnova Darius which contains lots of Iron Warrior Elements IMO） we even got a lord of change in our game I think Riot had miss a good chance to give us Adepta Sororitas skins，both Kai‘sa and MF could be member of a Seraphim Square. Not saying the concept for GGMF is bad but I think Riot could have done better.