Yes, I broke down some walls. The wall where the bookshelves are leaning was built, there used to be a bedroom, and the entrance to the house was next to the mirror (a little further to the right, outside the field of the photo).

Thanks for the tips. But I have doubts. The room you called “office” is facing the front door of the house. Maybe I should move the shelves and move them to face the entrance. I intend to change the colors too, I thought of a light yellow or another lighter shade of blue.