This impressive armor belongs to Morder, a character also known as Saber of Red or The Knight of Treachery. She 'sthe saber servant of the Holy Grail War of Fate/Apocrypha and is brought to us by cosplayer @dekisui.
Camie and Gilgamesh
@Lillipopheidi13 cosplays as Camie Utsushimi from My Hero Academia and @Meiguro is Gilgamesh from Fate.
Warrior of Chaos
@Azak_von_krieg shows us his version of the Warrior of Chaos from the Warhammer Fantasy Battle game.