The tone of the fanfic might be distinct. The original Twilight has a certain mood, which is a mix of romance, mystery, and a bit of danger. This fanfic could be darker, lighter, or more comical. Maybe it makes fun of some of the original concepts in a light - hearted way, or it could be so serious that it changes the overall perception of the Twilight universe. It might also have a different pacing, with events happening more quickly or slowly than in the original story.
One way it could differ is in the character development. In the original Twilight, the characters have a certain arc. But in this fanfic, they might grow or change in different ways. For example, Edward could become more human - like in his emotions, or Jacob could lose some of his werewolf traits in an unexpected way.
It might be the way the relationships develop. In the Twilight series, the relationships are somewhat predictable. But in this fanfic, they could take a turn for the unexpected. For instance, if Bella ended up with a different vampire or werewolf than we expected. It could also be that the fanfic delves deeper into the backstories of the characters, revealing things that make us see them in a whole new light, which is quite surprising.
The original series mainly focuses on Bella and Edward's love story and the vampire - human conflict. In the 'Bella pregnant fanfic', the focus shifts more towards Bella's pregnancy and all the implications it has. For example, in the original, Bella's transformation into a vampire was a big deal, but in the fanfic, her pregnancy becomes the central event.
Well, it may differ in character development. In the fanfic, characters might grow in different directions compared to the original series. Maybe a minor character in Twilight becomes a central figure in the fanfic with a whole new set of traits and goals.
The'myths are real' fanfic might have a more expanded view of the mythologies involved. In the original series, the mythologies were somewhat contained, but in the fanfic, they could be more extreme or complex.
The main difference is the role reversal. In the original, Bella was a human in a world of vampires and werewolves. In the reversed fanfiction, perhaps the vampires are the ones in a world dominated by humans. Also, the relationships change. Instead of the vampire falling for the human, it could be the human trying to win over the vampire in a different way.
The 'original 50 shades of gray twilight fanfiction' differs in terms of the nature of the relationship. While 'Twilight' focuses more on a pure, romantic vampire - human love, the fanfiction might incorporate more adult - oriented themes from '50 Shades of Grey' like a more sexualized relationship dynamic. Also, the power dynamics in the fanfiction could be more extreme compared to the relatively more equal relationship in 'Twilight'.
The male Bella Swan in the fanfic might face different expectations from society within the story. In the original, Bella had to deal with being the new girl in town. As a male, he might have to deal with different social hierarchies, like being part of male groups or facing different forms of competition. This would also impact the overall plot.
It might have updated characters with more modern personalities.
In the original Twilight, Bella is a normal human girl. But in 'bella witch twilight fanfiction', she has witch powers. This completely changes the dynamic. For example, instead of always being the damsel in distress, she can be a powerful force. She can use magic to fight off enemies rather than relying on the Cullens all the time.
In the original Twilight series, Bella doesn't have cancer. So, in 'bella cancer twilight fanfiction', there is an added element of mortality and human vulnerability. It changes the dynamic of her relationship with Edward as they face a very real and often fatal human illness.