Academics would look at this dress and say, "Pfff, a French court style worn in the Scottish highlands? With modern-layout silver leaves floating on it? There's no sources for that!" Whereas a film/tv/theater costume designer might say, "Yes, but it COULD be possible...
Queenie is the highly unstable center of focus for Blackadder II and the characters' scheming, playing them off one another in a way that suggests she's not as stupid as she acts. Miranda Richardson is also given some of the best lines in the show.
The series covers Elizabeth's life from the last few years of her sister Mary's reign until Queen Elizabeth's death, all in six 85-minute episodes. At least six of Glenda Jackson's costumes are direct recreations from portraits of Elizabeth I, including the well-known Darnley portrait, Phoenix portrait, Armada portrait, and Ditchley portrait.