Yes, you can definitely use wallpaper to create a feature wall in a small space. In fact, it can be a great way to add visual interest and depth to a small room. Just be sure to choose a wallpaper design that is appropriate for the size of the space - large patterns or dark colors may make the room feel even smaller, while lighter or more subtle patterns can help create the illusion of more space. Consider using wallpaper on just one wall to create a focal point without overwhelming the entire room.