Light Is Important
A dark home will never look as warm and expensive as one that is light, bright, and airy. So, you should try to find ways to let as much natural light into your apartment or house as possible. You might want to put in a skylight or change the wooden doors to glass ones, for example. You can make windows brighter by painting the edges white instead of a darker colour. This won't let in more light, but it will reflect the light that does come in instead of letting it go to waste. Putting mirrors in key places will also help.