Adding lights as decorative elements helps set a mood in a space. Provided that general lighting is already installed using lights instead of wall art can be a decorative way to provide ambient lighting.
Bright idea for dimmed lighting: To make the most of your lighting install the highest-wattage lightbulb possible then dim it down to accommodate the mood and lighting needs. Consider putting dimmers on both overhead lighting and lamp lighting.
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.