The addition of wall mirrors or furniture with reflective surfaces will help with the amount of natural light in your living room. Also keeping your window treatments simple can have an effect on the natural light.
Tip: Try to maximise the amount of natural light in your small living room to make it feel bigger and brighter.
If you have high ceilings and a small floor plan, the addition of floor-to-ceiling window treatments will make a small living room space appear roomier. This addition automatically draws the eyes up the wall for a much larger feel.
What about your paint colours? Decorating in shades white on both walls and ceilings is a great colour choice for a modern and minimal design. However, it can leave a space feeling clinical and stark. Consider using a lighter colour on the ceiling then the one of the walls and pay attention to the natural light source.
Dark colours should be avoided unless it is a specific interior design choice. Dark colours are best used as accents on pillows, rugs or curtains