I think it really depends on the style and look that you want to achieve in your house - you should never give someone the advice to use wallpaper without knowing their design aesthetic. With that being said, I think that wallpaper is a lovely touch in older heritage listed home, because you can add the modern touch through it to the home, depending on the pattern.

I see wallpapered ceilings a bit in photos. See example. I can't imagine that would be easy to do! An application I did like was wallpaper between dark painted rafters. It was really effective. I don't envy the person who had to do that job. Or anyone who wants to remove it later. In my previous home, every room had been wallpapered sometime in the 80's. All bedrooms, hallway, living room, kitchen, bathroom, toilet. Quite a process to remove! I don't mind wallpaper but I didn't like the ones in that home. I think wallpaper can work really well in homes with a grander scale. High ceilings, architectural trims etc. In smaller homes, a restrained use is more appropriate IMO.

Designer Wallcoverings in the US ships the Martinique to Australia.

Hi again, Glad that you like ‘ceylonese’ but if you think it’s possibly a bit dark, try Flood Mud (Dulux), it’s a shade lighter. I suggest you buy sample pots of both and paint on large sheet of paper or board, then try both for different time of day and light and see what you think. I like the suggestion of moving your sofa around for cooler months ahead, but I too do not know what you have behind your photo. Once you have the ‘bones’ you like then you are free to move the furniture and add accessories as you wish. Have fun, that’s the main thing!