Hi, your home looks pretty good, you have done a lot on the interiors. Coming back to the question, yes, you can add a wallpaper behind the television, go for a textured wallpaper as it will create a compliment to your television. As you have decorated with wooden elements, you can go with a bookshelf on the wall. And, there is one more thing which will be a simple addition but will look perfect and that is an antique wall clock. An antique wall clock will make your wall look great without any fuss.

Framed corrugated iron shutters left natural would be my preference, colour might be a bit 'try hard' and natural will sit in the environment more easily. Could even make barn doors with it if you prefer that look. The actual barn door fittings are the pricey bits I believe. Our cyclone was made of corrugated iron (by pro shelter builders) and it never ever budged (loud though) so a bit of coastal? wind won't worry it. You don't have much wind going by photo's, all trees seem to be growing upright so a regular build will be fine.

Very helpful Off to do more homework . Many thanks

Okay, firstly, this is very difficult to do without seeing the room in person. So rather than suggesting a colour, let me tell you some theory and hopefully you can work it out. The painting looks a little yellow on my screen, I think it would look different in person. You want the image to stand out. What you're looking for is contrast between the image and your surroundings. Contrast can give seperation between elements and that's what you're after, the wall to receed behind the painting. white is not cutting it because it's competing with the image. The image has some light bright tones ie it's bright and the white wall will be bright, so a while wall and the painting will both compete for your attention. the other problem you have is all of the other elements in the room are darker and warm timber, we notice warm colours before cooler colours (ie blues) first, so it's likely all of thu sis competing against each other. So to not compete with everything else, you want something cooler but also not saturated (without a lot of colour). You want people to forget about the wall. again it's very difficult without seeing the room, so any colour I give you is not going to work. Get a few swatches from Bunnings and take them home and hold them next to the picture in the room. Narrow it down the 3 paints then get a small canvas, Bunnings is cheap, paint that with your colours and rest them on the wall with the painting. Move the canvas around the wall. Good luck. Colour is difficult but just try and get something that doesn't compete with the painting.