I would consider something light with some other colors to mix in like this. http://t.homedepot.com/p/Silestone-2-in-Quartz-Countertop-Sample-in-Mont-Blanc-SS-Q0220/203674451/ I like the wood paneling and would paint it a white with a warm feel to it. A white will reflect a lot of light from your large window. I wouldn't paint the window casing as it might tie in better with the rest of the house. Good luck!!

Thanks for all the great ideas everyone and sorry I didn't explain the polycarbonate a bit better :) This is along the lines of what we'll be using... http://www.psp.co.nz/building-brands/corrugated-sheeting/suntuf-polycarbonate The area is an absolute sun trap and we're hoping to use it as an extension to our living space, especially on rainy days! I've just sent my husband out to get a few pots of different stains for is to try - darkest brown (cedar) and a lighter brown (rustic oak) both by Cabots + the black we already have. Hopefully we can decide between one of those! I probably should have mentioned we will have black aluminium pool fencing running along the top of the second retaining wall - so the real question is do we keep everything black (pool fencing, horizontal fence, retaining walls and pergola) or do we go with a dark (or even light) brown for the pergola and retaining walls.... We just keep going around in circles at the moment. Decisions, decisions! Thanks again :)

I'd like to suggest that the most important thing here is more about who is using the room. If It's a child's bedroom use lovely children's curtains - there's so much around and any pattern could pick up the wall and floor colours. If a guest room and not used often I'd suggest a beautiful velvet or good quality Linen and forbid the little ones from going in to that room!!!!!! alternately a blind attached at floor level could be raised or lowered so the view is still there but with privacy from waist height perhaps. Good luck. Bee

What about colour , character and personality ? A splashback with a pond and a tree may be great , or look naff , as the Poms would say . Potentially , its on the right track , but look at pic 3 . Gone to sleep yet ? Probably $30k spent on nothingness . Now look at pic 3 , and imagine your splashback . Even if it is ( cringe ) black and white too , it will actually add to it . A bit . I don't like the particular light used in pic 1 , but its got character , you notice it , it is not totally bland . Pic 3 is .