I am not sure you can make it appear much larger. And a mirror needs something to reflect to be effective. I vote for simple. Here is my front hall and it is about the same size. I have framed photographs on each side. They are my own work and the plan was to change them out periodically but I have been too lazy.

The outside of the door is painted Fabulous Grape and I tried painting the inside as well, but it just didn't look as good as I expected. The plain white works for me. I love my door, last year the Trick-or-treaters had a big time looking in the low windows....

IMO a great piece of art will make the space feel bigger than any mirror will and a more interesting door would also work better.

have you thought about wallpaper with a not-so-busy pattern? hubby forbids wallpaper in my house so i would have to do a large canvas on the wall to the right as you enter the house. i did find this picture to give an idea. a new door will be a big improvement.

Hallway · More Info

Thank you everyone! I’m not a big fan of wallpaper myself. So I’ll think a statement art piece or photo gallery will have to do