You can still answer the phone with the bookcase open. Then you won’t be able to read the dialogue. Also, are these funny symbols supposed to be there? I refreshed, played again, and didn’t see them for the good ending though.
An enjoyable game overall. Good job!
Edit: One more thing, at the very beginning the E looks like a part of the pictures hanging on the wall. I didn’t know what to do until I take a closer look. Maybe move the pictures? or change the color of the E? Of course you can do nothing.