My bed doesn’t have a headboard. And the wall the bed is against didn’t have any artwork.
The wall was badly in need of being painted. I painted it an accent color a while ago. And recently I bought some artwork from allposters.com, putting the posters into frames I already had. Took a while to decide how to arrange the frames, but it was worth it.
It was an inexpensive way to improve the room. I’ll post a pic later showing the accent wall with the posters. Hopefully when it comes time to sell this place, prospective buyers will like the bedroom now.