Another option is to paint it a color that highlights the details of the niche. This is a great way to give it an antique look and to make the design pop without having it take over the whole room.
One last thing to keep in mind is that a
wall niche should be placed on a wall that won't be overwhelmed by other art or items. This is important to keep in mind because a wall niche can have a lot of drama and depth, but if it doesn't fit the overall design of the space, it will be hard to see it.