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.
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.
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.
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.
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.
Well, it could be about Hermione deciding to change her look completely for a fresh start in the summer. Maybe she gets a new haircut, like a stylish bob, and starts wearing different types of clothes, more modern and fashionable. She might also experiment with makeup, going for a more natural look during the day and a bolder one for evenings out.
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.
There could also be some new characters. Maybe a wizard or witch who works in a wizarding fashion store where Hermione gets her new clothes. This character could give her advice on what styles would suit her best and become a sort of friend during her makeover process.
She likely becomes more confident in her abilities outside of just academic knowledge. Saving Fred would require her to take risks and trust her instincts, which could make her more self - assured. For example, if she has to perform a spell she's not entirely sure about, but does it anyway to save Fred, it shows her growth in believing in herself.
She becomes more introspective. As a seer, she has to deal with the weight of knowledge that comes from her visions. This makes her more cautious and less impulsive compared to her original character. For example, she might think twice before jumping into a dangerous situation like she used to with Harry and Ron.