I haven't read the 'Red White Blue' novel yet, so I can't give a detailed review. But generally, when looking at reviews, one might expect to see comments on the plot, the characters, and the writing style.
Maybe the protagonist is the most memorable. Usually, the main character in a novel has a unique personality and goes through a lot of development, which makes them stand out. They are often the ones driving the story forward.
One of the main themes could be the relationship between humans and nature. In 'Into the Blue', the characters might interact with the natural environment in a significant way. This could involve things like depending on nature for survival, or having a deep appreciation for the beauty and power of nature. Another theme could be about friendship. As the characters go through their adventures together, their relationships are likely to be tested and strengthened.
I'm not sure specifically as I haven't read this story. But generally in a murder squad short story, it might involve the investigation of a murder related to the blue girl. Maybe she is the victim, or somehow connected to the crime that the murder squad is trying to solve.
One of the main themes could be historical context. Given that Prussian Blue has certain historical connotations, the novel might explore the relevant era's society, politics, and culture. Another theme could be human relationships. It might show how characters interact within the setting influenced by Prussian Blue elements.
Perhaps the protagonist stands out. They are often at the center of the story and drive the plot forward. Their actions and decisions are what make the story interesting.
I don't know for sure as I haven't read it. But surely there would be members of the murder squad. And of course, the blue girl is likely to be a main character as well.
I'm not sure as I haven't read it. But likely the members of the murder squad are main characters. And of course, the Blue Girl herself might be either a main character if she's alive and involved in the story in some way other than just being a victim, or she could be the central figure around which the whole murder mystery revolves.