Added tag Admiral Graf Spee. The artist changed the hair style of both characters, as is obvious. Originally, Admiral Graf spee has short hair, Deutschland has very long hair. Who is who can also be concluded from their expressions, bust size, and hair colors. They are not swapped nor cosplaying. In other words, if that is not Graf Spee then the other person is not Deutschland either. Then the post should be "cosplay". But it is definitely not cosplay as the artist herself has written "Deutschland-Klasse" as the title and I believe she would not do that if it was cosplay.