Another issue could be a lack of a coherent plot. It might jump from one random event to another without proper build - up or connection. Maybe the fanfic starts with Harley in Arkham Asylum, then suddenly she's on a road trip with no explanation for how she got there.
One common problem could be inconsistent characterizations. Writers might deviate too much from Harley Quinn's established personality, making her seem out of character. For example, if they make her overly meek when she's typically known for her wild and unpredictable nature.
Secondly, plan out the plot better. Have a clear beginning, middle, and end. Maybe start with a problem that Harley has to face, like a new villain in Gotham. Then show her journey to overcome it, and finally a resolution. This gives the story structure.
One common problem could be inconsistent characterizations. For example, Naruto might act completely out of his established personality. Another issue could be a convoluted plot that makes no sense. It might jump from one random event to another without proper transitions. Also, bad grammar and spelling can really break the reading experience in these fanfics.
One common theme is the redemption of Harley Quinn. In many fanfics, she tries to break free from the Joker's influence and find a new path, often with Batman's help or at least his begrudging acceptance. Another theme is their complex relationship, whether it's a romantic one or just a mutual understanding that defies their traditional 'villain - hero' dynamic.
One common theme is redemption. Harley Quinn has a complex past, and in many fanfics, including those involving Harry, she is on a path to redeem herself. Another theme is friendship or an unlikely alliance. Harry and Harley Quinn coming from different backgrounds and yet finding common ground.
A prevalent theme is often about relationships. It could be her relationship with the father of the child, if it's the Joker, how that dynamic changes. Or it could be about her new relationships she forms with other characters who support her during the pregnancy, like other female characters from the DC universe.
One common theme is Harley's struggle with her new identity as an expectant mother. Given her chaotic and often unpredictable nature, the fanfics might explore how she copes with the idea of bringing a new life into the world.
Another storyline might involve a love triangle between Batman, Harley Quinn, and a character associated with 'lemon'. Maybe there's a new hero or anti - hero in the Gotham underworld who has a connection to lemon, like a symbol or a power. Harley is attracted to this new character's free - spirited nature, and Batman is suspicious. This creates a complex dynamic of love, jealousy, and power struggle.
Another theme is chaos and adventure. Since Harley Quinn is often associated with mayhem in Gotham, the OC gets dragged into her wild adventures. They might face off against other villains or try to outwit the Batman together, which makes for exciting reading.
One common theme is identity. The oc, being Harley Quinn's child, has to figure out who they are. Are they going to follow in their mother's footsteps or forge their own path? Another theme is family. Even though Harley has her own quirks, the oc might still have a strong bond with her or struggle with the idea of family due to Harley's lifestyle.
One common problem could be inconsistent characterizations. For example, if the fanfic makes Harry Potter act completely out of character, like being overly cruel or cowardly when he's known for his bravery and kindness in the original series. Another issue might be a muddled plot. It could start with one idea, like a new mystery at Hogwarts, but then add so many random sub - plots that it becomes hard to follow. Also, poor grammar and spelling can make it 'broken'. If the writer doesn't use proper English, it can be really distracting and take away from the enjoyment of the story.