Танцующая с лошадьми

The underground London scenes added a gritty, emotional layer to the narrative. I'm curious whether the author planned this setting from the start or it emerged during writing.

The horses felt so real and full of personality, almost like characters themselves. Did others find themselves rooting for them just as much as the human characters?

The themes felt very personal and powerful. I wonder what inspired the author to focus on these ideas within this setting and cast of characters.