Hi there, I agree with a lot of the suggestions above. Consider the textures, colours and finishes of your furnishings and artwork and think of the pendants as an opportunity to reiterate some of these. So for instance, if you have some black metal in the coffee table legs, you may bring in some of that in the kitchen pendants and look for say glass pendants with black fixtures. Coloured pendants are fun but they can date a lot quicker - bring in colour in the room through artwork, cushions and accessories.

I love how the colours in these would tie in with your dining rug as well as that beautiful inlaid chest and mirror..

If you are in New Zealand, I have often found great lights (and a big range) at Lighting Plus. When I was putting my house on the market I put three of these: http://www.lightingplus.co.nz/lighting/pendants/contemporary/jaga-bcopal-1light-pendant.html over my kitchen benchtop, and they looked just gorgeous. So gorgeous in fact, that I have already bought three new ones in advance for when I upgrade the kitchen lighting in my new house. They also have these : http://www.lightingplus.co.nz/lighting/pendants/contemporary/hudson25-whitegold-1lt-pendant.html or these: http://www.lightingplus.co.nz/lighting/pendants/contemporary/trumpet35-pendant-blackgold.html  if you like the look of the internal gold under the shade. There are also others similar. I have also found some great lights at : http://www.edenlighting.co.nz/collections/pendant-lights . All of these are very affordable. However if you want to go really high end, and you like NZ timber lights, you can't go past : https://www.davidtrubridge.com/collection/lighting/  Just my 2c. Enjoy.

What a wonderful space. I love it. what direction do you come from when you enter the room, that may be the main sightline to consider when choosing the colour, as you want the lights to be sufficiently visible against the background that is relevant from the entry point to the space.