Love and lust are common themes. Female vampires often find themselves in complex relationships, either falling in love with humans or other vampires. Another theme is power. They may be seeking power, either to survive or to dominate in the vampire world. For example, in 'The Vampire Diaries', Katherine uses her vampiric powers to manipulate those around her for her own gain.
Isolation is a significant theme as well. Female vampires are often different from normal humans and may not fit in either with human society or even the vampire society at times. In 'Let the Right One In', the young female vampire is in a sense isolated due to her nature and the need to hide what she really is. Also, the theme of immortality is there. They have to deal with living forever and seeing the world change around them while they remain the same.
Identity is a theme that runs through many female vampire novels. They may struggle with their vampire identity, especially if they were turned against their will. In 'A Discovery of Witches', some female vampires are trying to define themselves within the larger context of the supernatural world. They may question their place, their values, and their actions as vampires.
Love and lust are common. Female vampires often have passionate relationships, like in 'Twilight'.
One common theme is the struggle between good and evil. The female vampire may be fighting her own dark nature or facing external evil forces. Identity is also a big theme. She might be trying to figure out who she really is as a vampire, especially if she was recently turned. There's also the theme of isolation. Since vampires are often seen as different, female vampires in fanfic can feel alone and have to deal with that.
In vampire space novels, a recurring theme is the search for a home. Since they are often outcasts or predators, they are constantly looking for a place where they can exist without persecution. Another theme is the evolution of vampires. In the space setting, they may evolve different abilities to cope with the new challenges. Also, the theme of secrecy is present. Vampires usually try to keep their existence a secret from other species in space to avoid being hunted or studied.
The power of faith is a huge theme. The Christian characters in these novels rely on their faith in God to combat the vampiric threats. Also, the idea of the soul is important. Vampires are often seen as soulless or having lost their souls, and this contrasts with the Christian concept of the soul's significance. And there is often a theme of sacrifice, where characters may sacrifice themselves in the name of good and in line with Christian values.
Love is a very common theme. In many supernatural vampire novels, there is often a romantic relationship between a human and a vampire, like in 'Twilight'.
Another theme is redemption. Sometimes, a vampire character may be on a journey to redeem themselves, especially if they have a human side or some sort of moral compass. This can be seen in how they interact with the human characters in the story. It's like they are trying to atone for their vampiric nature in a world full of cowboys and saloons.
Power dynamics is another theme. The vampire character usually has more power, physically and sometimes socially. This can create an interesting dynamic in the relationship as the human or non - vampire character has to navigate this inequality.
One common theme is the clash between the old, often superstitious beliefs of the Byzantine era and the reality of vampirism. For example, how the people in the story react to the presence of vampires in a society that has its own religious and cultural beliefs.
Love is a common theme. Often, there is a love story between a human and a vampire or between two vampires. Another theme is power. Vampires usually have some special powers and there are often power struggles among them.
One common theme is the struggle between different vampire factions. In a school setting, there might be different clans or types of vampires vying for power or control. For example, in 'Vampire Academy', there are the Moroi (good vampires) and the Strigoi (evil vampires), and the students are constantly in the middle of their battles.