Sconces come in many forms from artistic and ornate to sleek and simple and can hold just one bulb or many. Single-bulb sconces that are spread farther apart will add light around eye level for more even brightness. For the total elimination of shadows pairing two-light fixtures spaced closer together will achieve a salon level of clarity.
Another important ceiling-based light source is the pendant or chandelier. The line between these two can be blurry as a chandelier is essentially just a large (and often more decorative) pendant light. Chandeliers also are more likely to have multiple bulbs (which help create more layers) but what is or is not a pendant is still a gray area especially with more modern fixtures like the one here.
In a renovation on the other hand we have to consider what effect a new skylight will have on the efficiency of the existing building. In some cases the additional sunlight (and therefore heat) can help reduce the amount of energy needed to heat the house. It depends greatly on the local climate but also on the design of the building envelope of the house.