Add glamour to your wall above the bed by adding some stardust decoration to it.
Create a double-usage bookshelf.
Consider making the wall decor a storage space above your bed.
You can place the original artwork in the blank space above the bed.
Adorn the wall with beautiful light fixtures.
Incorporate any custom decoration on the wall.
Hang rattan bowls for an elegant touch.
You can even add some linear artwork in pairs.
Opt for wood carvings in the blank space to create some texture.
Finally, hanging a mirror would look classic. You can choose an oversized mirror.