Lol, Natalia even uses the same
brand of cigarettes as Aozaki Touko (The type we saw Touko giving to Mikiya in Paradox Spiral). Her office is kinda similar too. The first guy we see Kiritsugu shooting has a face similar to Araya Souren.
Great episode. It was truly heartbreaking seeing Kiritsugu cry for Shirley when he killed Natalia (though slightly ruined by the fact that his face looked a little like Caster).