The space looks a bit cold & clinical at the moment. Add sheer curtains to the window from ceiling to floor this wall Add some drama and also help to soften the look. I don't think the corrugated iron works use timber instead . A rug will better define the space perhaps with pops of colour like yellow , orange or red this will add some warmth. Prints on the wall , large pot plants side tables and floor lamps . In the billiard area it would look good to add a pendant lamp over the table you can buy ones specifically for billiard tables . More pops of colour also a couple of occasional chairs . You could also add more timber here to give more ambiance. Happy decorating .

@Lynne: thank you for your thoughts and comments. This house was built with some feng shui in mind, thus these roof lines - and roof orientation. We are aware that those columns are in the way. At a first glance, the one in front of that two panel door is not load bearing, this could be removed (seriously-who on earth places a pillar in front of a sliding door?!?!?!). The other one on must remain while both on the balcony are required; although we're planning on redesigning the balcony, thus can remove/ change the location on those columns/pillars can be reinforced and then moved. We're using a 3D software (sketch up or Revit) to play with potential designs to get a feel for the look (as we don't want to waste the time of a drafts person) before commissioning someone. Although I believe we will require a designer/ assistance of where items such as the BBQ could be build (kitchen faces the SE side of the house) to ensure a good flow inside out of the house... Thanks again! Much appreciated ;-)

ckat0076, you are most welcome. The porcelain tiles are fantastic. I have always been a wood floors lover and have lived with wooden floorboards for 20 years. But I must say the tiles are sensational, they have just been the best option for our family. You do not have to worry about anything happening to them, yesterday I dragged a big sideboard across the floors and no marks. No more worrying about water on boards. The only thing I could say is the tile I chose turned out to be lighter, when laid over the large floor space. The sample tile looked darker. I cannot remember if your house is a new build or a renovation as we had to have a 15mm screed under the tile. If you have any questions at all, I am happy to answer honestly.

re the floor, what about garage matting tiles, as in photo attached, but lay them in a groovier pattern, perhaps a chevron or 60's pattern, if leaning towards MCM. It may not be any dearer than the cost after getting a tiler in, if laying tiles? Also, you can take them out to clean them if need to and change the look whenever you feel the need!