Victoria's Court...
was rigid.
One was introduced by the major domo, escorted to the queen, made a deep to the floor curtsy or the low bow, and waited to be spoken to.
When dismissed one backed away. At more informal social gatherings with others in attendance around the queen one backed away the correct distance and then merged into the people. I believe the distance was around 3 metres, 9 -10 feet before it was correct to merge. In a very formal one on one meeting you jolly well backed out of the room when dismissed. I believe there were officials to field you if you wobbled or veered as you backed off.
The curtsy and bow were not the same as the ordinary every day ones. There were degrees of bowing and curtsying and they could be used to express superiority and the level of one's snobbishness or anger or disdain. The woman's curtsy is very difficult to do because the back must be straight all the way down and up, yet your rear nearly touches the floor! Anyone with classical ballet training who learnt to do the reverence knows what I mean.