Okay, so not the most exciting part of the apartment, but often these are areas that I overlook and I have to say by adding art and mirrors to the walls of the hall and the upstairs landing it has made a huge difference and a more finished look.

The key that I have found is to have different options so not everything looks the same: I always try to mix it up with framed art, photographs, mirrors, posters (I found this great map one you can customise), clocks, real paintings, chalkboards, and clocks.