People do look up and a ceiling is as important as any other surface! I think these 3 images from my travels prove that point (in formal and ornate ways) - who could NOT notice these efforts? The first thing people tend to notice with memorable interior designers are their ceiling treatments: Real estate agents always will point out crown moldings and any decorative beams. It shows an attention to detail. Don't think no one will notice ill-placed air vents, sprinkler system heads or home depot light fixtures!First image: Royal palace private apartments: Naples, Italy.
Second: underside of archway in St. Germaine, Paris - at the end of the Pont Neuf.
Third: private palazzo entryway (under restoration) in Naples, Italy.