Ah the grownups. A nice area to sit and relax, entertain or just spend family time is essential. Same deal as all the other areas really, consider what the area will be used for and perhaps try to vary the style from other parts of the house or outdoor areas. You can find very sophisticated lights to set the mood and distinguish it from the kids area or general space. And the adults deserve as much luxury as you like, no need to let the kids have all the fun. Furniture, plants and flowers are all considerations in this area.
Your final decision on what style of wall lighting to choose should be a combination of 2 to 3 of the elements you have written down in your notes. Your wall lighting should be constructed with some of the elements of the furniture in the room. This could be wood, metal, glass, plastic and fabric (Some wall lighting has lamp shades).
It has come to my attention that many of my readers have very little information when it comes to wall lighting. I get contacted all the time by my friends in cyberspace who would like to have a general idea of what is available to them in the form of wall lighting. Some of them go as far as to tell me what room they intend to install wall lights and include the theme or style of room decor, so I am able to suggest the wall lighting best to fill their needs.