Yes, the swastika on her armband is reversed, the ones on her epaulettes are correct. The lightning flashes on her lapels don't look quite right for some reason. AFAIK the German army did not have females although there were female warders in the camps. The image as it stands - yes it could be offensive to about half the world I think. I would suggest posting it at Renderotica.com instead, as you've got a strong sexual/fetish theme coming through there.

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"you are terrifying
and strange and beautiful
something not everyone knows how to love." - Warsan Shire