I'm not entirely sure what you're trying to do so I'm not sure if this is the only thing but the German Empire has gotten antialiased somehow, also you can probably figure out the missing section of Austria Hungary's border with the overlay.snip
'ere you go.
So uhhhhhhhh anyone here tell me if what I'm doing is wrong? If I've made some error?
Something feels off about the eastern German boundary too.
I do have an overlay that I can send you of the German and Austro Hungarian Empires with administrative divisions, though some of the data is not perfect at this resolution (especially in Austria Hungary)