Since Wikipedia says that Fritz had Biche painted in the concert room of Sanssouci, I attempted to find a good photo of the picture in question and I did! 1747 would fit, But Wiki quotes the Tagesspiegel and I don't know where they got it from, so I might never know whether this is actually Biche or just a random dog... Ah well, I'll see how it works out :D Digital art is forgiving, so I can just change the colours later if we unearth more information.

That statue is amazing! I've been staring at it for ten minutes, it's SO COOL :DD Gotta remember that one, maybe I can use it for a paper at some point. Do you know who the artist is? I tried googling it, but I couldn't find anything so far