Don’t limit lighting to downlights. Depending on the location consider wall sconces or uplighting to create a softer ambiance and avoid potentially harsh downlighting that can cast ominous shadows.
As you evaluate the status of your lighting style keep in mind that lighting also functions as art that helps define your style set the mood and perform practical tasks. Think of adding light in unexpected places such as a chandelier in the master bathroom. And consider using light in unconventional ways — such as using hanging pendant lights as reading lamps.
Adding lights to stair risers is beneficial since it can be hazardous negotiating stairs especially at night. Staircases are often enclosed so light them from the sides or embed lights in the risers as a design element.