Desenhos ocultos

The atmosphere in 'Hidden Pictures' kept me on edge, but I'm curious whether the author aimed for a specific psychological effect or drew from personal experiences.

The illustrations added such a creepy layer to the story, but I wonder if that was a deliberate choice to evoke unease or just a stylistic preference.

The pacing felt carefully managed, especially with the shifting viewpoints. Was this a conscious decision to keep readers guessing until the end?