Not necessarily. Many stories that claim to be 'true' are actually a blend of fact and fiction. Domina could fall into this category, where it might have a basis in real history or events but with creative liberties taken.
To be honest, it's hard to say for certain. It could have some roots in reality, but it's probably a blend of fact and imagination to make it more captivating on screen.
I'm not sure who 'Esmeralda Lobos' specifically is in 'Pulp Fiction' as it's not a widely known main character in the movie. There could be a minor character with this name or it might be a relatively unknown reference within the complex world of the film.
The main characters of Hua Queque's novel,"The Eldest Princess 'Little Lover (1v1)" were Xuan Hua and Lu Heng. This novel was a high-level novel with excellent writing. It told a beautiful and pure love story. The latest chapter of the novel was verse 38, which described Eldest Princess Xuanhua's anger and dissatisfaction at Lu Heng's victory. Xuan Hua had raised a male pet in the backyard for three years, but Lu Heng had won the top scorer in one fell swoop. Xuan Hua had decided to chase him out of the residence. Lu Heng returned to Luoyang after three years as an official. At the palace banquet, Xuan Hua looked at Lu Heng's face and recalled the scene of him being tied to the bed. Hua Queque's novel was loved and recommended by the readers.
Since I have no prior knowledge of this 'villa lobos pulp fiction', it's difficult to determine the creator. It could be an independent artist, a small - scale writer or filmmaker who was inspired by both the concept of Villa - Lobos (if it refers to the composer) and pulp fiction in general.
I'm not entirely sure specifically what 'villa lobos pulp fiction' is about as it could be a very specific or even an original creation that I'm not familiar with. It might be a creative project that combines elements related to Villa - Lobos (a composer perhaps) with the style or themes of Pulp Fiction (the movie).
Since I'm not familiar with an 'Esmeralda Lobos' in 'Pulp Fiction', it's hard to say what the significance would be. It could potentially be a local or personal reference within the story's setting that has some meaning for the characters but not for the overall audience.