I followed your advice
You can't use several .dll version at the same time: only first version will work.
You can delete obsolete .xml version or leave it as it is.
and deleted all but KinopoiskLib-Eng.dll
I am very pleased with the fanarts provided but disappointed that folder artwork is not searched for. I thought that by the descriptions in the dll descriptions in | Options | Providers | Fanart | that pics and wallpapers would be searched for as well. (What does Pics (All pictures) search for)?
As you will see from this example, a lot of good quality fanart is scaped (only your dll was enabled for fanart scraping)
...as a comparison, here is the window from a scrape using IMDb.com, TMDb, TMDb - LaserDisken MiPs (my usual preferences)
I have not done a comparison of wallpaper quality or counted the results, but am confident that your dll would appear to be working for Fanart at least.
\thanks again for a job well done in giving us another MiP for FanArt