This is probably a weird thing to focus on, but I really like Claire's and Rei's fancy outfits for the etiquette test. In the web novel there wasn't even a mention of them changing clothes. Also Rei getting distracted by the sexy is definitely a mood.
Also, if anyone was wondering this chapter was only adapted from one chapter of the web novel, unlike the previous one that adapted the first six web novel chapters. It's a pretty good adaptation IMO, cutting out a lot of the less important exposition and expanding on other parts. For example, Rei's point about the king trying to make the country be more of a meritocracy facing opposition from the nobles is shown with her getting pushed around by her classmates; it's a nice little addition that wasn't in the original chapter.