As far as I can tell, the difference is the length of sleeve and the color of ribbon. Oh, they don't wear jacket during the day.
Spoiler for comparison:
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流麗のヒステリア Hysteria of flowing beautifully
三つ腕のリヒティ Lichty of three arms
重剣のクロエ Chloe of giant sword
天啓のシスティーナ Sistina of Apocalypse
愛憎のロクサーヌ Roxanne of distinguished love and hate
万有のルテーシア Lutécia of everything
塵喰いのカサンドラ Cassandra of eating dust