I didn't like the brown wall and the thick, heavy curtain so we took those off. I think this was formerly a kid's room due to the stickers on the wall.
The brown wall and curtain really made the room dark.
When the brown covering came off, this is what we have to deal with - ugly. This wall required so much spackling and sanding.
With newly painted walls...
All new - bookcase, curtain added.
I thought the paint and the softer curtain brightened the room.
Welcome to my home office :)