Bigger is better when it comes to artwork in a small room.
You may have thought the opposite before. However, large art in a small space is very effective in scaling up the room.
A giant piece of art, large map of the world, or sign can be a central focus in the room. Large artwork defines the space and distracts you from the small scale of the room.
In a small space think big scale, it pays off when it comes to art and a small room.