As the appearance of the garden has a modernist style with the straight lines and concrete furniture how about a Mondrian influence and add a bold strip of blue? It is a pond and with the right shade it could look really relaxed and contemporary. My daughter's suggestion is a chalky lilac!

For the fireplace inserts go ahead and do the green order a second set of panels that you store that are more neutral. In 10 years or five years you may not like the green anymore. It's possible you won't have access to different colored panels at that time. As for the color I like the ideas of going into those silvers it would coordinate very well with your blue couch and it will pull the blues out of the curtain panels. For the wall coloring use the warm golden color in the drape. There is one piece of the flower that has this color and it will balance the weight of a dark couch. If your room is small don't go too dark in this color. You could use it on the main wall and pick two shades lighter on the other three walls.

I was about to say grey until I read the last line. What about a light brown carpet?

I am blown away from down under by the help that you all have freely given .... thank you sooo much indeed. who would have thought after a year of anguish that I would be put out of my misery! If I do go for the atlantic for chairs I will bring in plum touches and vice versa. Will now need to go and find some plum that closely aligns with your suggestions. Thanks for saying we can keep table! It is a good solid NZ made oak one ... chairs were all the rage back about 18 years ago! Now need to go! I will put up a pic of a rug that was quite nice but rather expensive so ... might be in an hour or so. Thank you so much again.