Some of my favorite tips from this article are:
3. Hang artwork at the right height. Galleries and museums hang artwork so that the midline (center) of each piece is 57 inches to 60 inches from the floor. (The average human eye level is 57 inches.) And you should do the same.
In a room like this, where the ceilings soar, there might be a tendency to hang the art higher. But remember: It needs to relate to human scale, not the structure’s scale.
If you’re not sure, take a picture. It’s remarkable how much a photo can reveal. Print it out or use Photoshop or an app to draw on the photo. This can give you a sense of whether a larger or smaller piece of art is needed or a tall plant might be best to fill a vacant spot.
6. Create a focal point. There are leading roles and supporting cast members in any production. The same holds true in design. Choose your star and make it the focal point to anchor a room. Allow other items to take a secondary role. Don’t ask everything to have a leading role; it will just result in visual noise.
Your focal point might be a dramatic hood in the kitchen, a mantel and art piece in the living room or a headboard in the bedroom. Whatever it is, choose something that will draw attention. In this room the fireplace and the lighting work together as a collective focal point, bringing your eye right to the center of the composition and anchoring it there.
10. Add layers of lighting. In this kitchen seating area, the backsplash is lit, the artwork is highlighted and the cabinet interiors are filled with light. One central lighting fixture would not have had nearly the same dramatic result.
Professionals build layers of lighting to create interest, intrigue and variety. In a room where everything is lit evenly, nothing stands out. Pick a focal point and perhaps a secondary focal point and highlight those. Add general ambient lighting and some lower lighting, like table lamps, for interest.