The Todd McFarlane's Little Red Riding Hood story is likely to be a unique take on the classic tale. It might involve his distinct art style and perhaps some darker or more edgy elements. For example, the characters could be more menacing - the wolf might be even more terrifying and the setting more foreboding.
The relationships in Red Hood dark multiverse fanfiction are also different. His relationship with Batman could be more strained or even hostile. Instead of the complex but somewhat amicable relationship in the main universe, here they might be on opposite sides due to their different views on how to deal with crime in this dark multiverse version of Gotham.
Well, surely Little Red Riding Hood herself is a main character. And of course, the Big Bad Wolf. There might also be other characters like her grandmother, as is common in the traditional story. But Todd McFarlane might introduce some new characters too, like a mysterious woodsman who has his own motives in this version of the story.
The deviation from the norm. In normal stories, Red Hood has his set of rules and morals. But in dark multiverse fanfiction, all that can be thrown out the window. He can be a wildcard, which makes his actions unpredictable and exciting.
One common theme is redemption. The female Red Hood might be on a journey to make up for past wrongs, just like the male version in some interpretations. Another theme could be identity struggle, as she tries to define herself within the complex DC universe.
One of the best is 'The Dark Knight Returns'. It presents an aged Batman coming out of retirement in a gritty, alternate future of the DC Multiverse. It's a story that challenges the traditional view of superheroes and their place in society.
You could also check out some DC - related forums. Fans often share their own fanfictions or recommend good ones there. For example, Reddit has DC sub - forums where users might discuss and link to 'Female Red Hood' fanfictions.
His motivation could be related to a difference in ideology. Red Hood has a more brutal approach to crime - fighting compared to Nightwing. He might think that Nightwing's methods are too soft and by kidnapping him, he wants to force Nightwing to see things his way.
It could be someone manipulating Red Hood. For instance, a powerful crime lord who has some dirt on Red Hood and forces him to kidnap Nightwing. So, in a sense, this crime lord would be the real villain.
The Batman Who Laughs is extremely popular. He combines the intelligence and skills of Batman with the insanity of the Joker. His twisted nature and his dark plans make him a fascinating character in fanfiction.