Böse Mädchen sterben nicht

The angels in this story aren't purely good or evil, which adds layers to the conflict. I'm curious whether this was a conscious choice or evolved during writing.

The story's tension seemed to dip before picking up again. Was this intentional to build character depth or a natural flow of the plot?

The mix of city life and angels creates a unique atmosphere. I wonder what inspired the setting choices and how much research went into the supernatural lore.