As far as i can tell St. Paulia is really really good for Crit Teams. 20 % Critical Hit Rate for the whole team + 30 % Crit Damage + 1,2 Skill Act.
But the japanese Wiki isn't fully updated yet (the stat changes are missing).
Maria is a Reenact Girl after Rarity Growth and i don't know about Cyclamen (weird translation skills via Google Translate )
Looks like she has the Shield Ability?