In Hermione Granger makeover fanfiction, the concept can be shown creatively through magic. For example, a potion that changes her appearance in an unexpected way, like giving her hair a different color every day depending on her mood. It adds a magical and fun element to the makeover.
Hermione's character could develop in several ways. Firstly, her new look might make her more aware of the shallowness of some people who only judge by appearance. So, she might become more empathetic towards those who are not conventionally attractive. Also, she could start using her appearance as a tool, like in negotiations or when trying to persuade someone. Since she was always smart, now she has an additional asset. This might make her more strategic in her actions. Moreover, she may attract new friends or even enemies because of her changed look, which in turn will shape her character further as she deals with different types of relationships.
There's also 'Hermione's Stunning Makeover' which takes a more magical approach to her makeover. In this fic, a spell gone wrong (or right, depending on how you look at it) gives Hermione a completely new look. It's really interesting as it shows how her new appearance affects her relationships with Harry and Ron.
One common plot twist could be that Hermione's makeover is part of a magical experiment gone wrong. For example, a spell meant to enhance her appearance slightly ends up changing her looks drastically in an unexpected way. Another plot twist might be that the makeover is a disguise for a secret mission. Maybe she has to infiltrate a group that only allows a certain 'look' and so she gets a makeover to fit in. And sometimes, the makeover is a result of a bet or a challenge, like she lost a bet to Ron and Harry and has to get a makeover as the consequence, which then leads to all sorts of new adventures and interactions with other characters.
One idea could be that Draco is forced to give Hermione a makeover as part of a school project on cross - house cooperation. He initially resists but then gets into it, choosing a more edgy and modern look for her that shocks everyone at Hogwarts.
In 'Hermione Makeover Fanfiction', her physical makeover can symbolize her inner growth. For example, a new hairstyle or wardrobe could represent her breaking free from her traditional bookish image and becoming more adventurous.
Obviously Hermione herself is the central character. But her friends like Harry and Ron would surely be involved. They might be shocked or supportive of her new look. Also, characters like Draco Malfoy could be involved. He might react with jealousy or new - found interest depending on how Hermione's makeover changes her overall presence.
In this kind of fanfiction, Hermione might get a new look that completely changes how others perceive her. For example, she could change her hair style from the bushy curls to sleek straight hair. This new appearance might attract the attention of characters who previously didn't notice her in that way.
Friendship is also a big theme. Hermione has to navigate her relationships with her old Gryffindor friends and her new Slytherin acquaintances. Sometimes there are conflicts, like when her friends don't understand her new ways. But other times, they learn to accept and even admire the new Hermione.
Another theme is the reaction of others. In these fanfics, we usually see how her friends like Harry and Ron react to her new look. Sometimes they're shocked, other times they're really supportive. And of course, there are always the reactions of her enemies or rivals too. It adds a lot of drama to the story.
There's also 'Hermione in Slytherin Green'. This fanfiction shows Hermione being sorted into Slytherin instead of Gryffindor. It explores how she adapts to the Slytherin house values while still maintaining her own intelligence and strong moral compass. The author does a great job of showing her interactions with the other Slytherin students.