Hello Emma-fleur, you are right, the red does emphasize the orange to does in the timber, which is not at all complimentary. Having said that it's an easy fix! Timber is still a natural tone, and you can easily reduce it's impact on your interior not by bringing in whitea and creams necessarily, as they will only high lit once again the orange tone in the wood, but try to introduce other materials and colour similar to it, therefore reducing their visual jarring. I mean that perhaps a sisal rope rug which has natural fibres and caramel colorings might help draw your attention away from the timber dominance, and introducing other mid toned timbers in hard furniture such as coffee or side table, mirrors or frames even lamp bases will actually tie into the timber, at the moment that is your feature which you are not happy with, so make a new one. Would keep a simple neutral palette across your soft furnishing,s sofas cushions and draperour both your drapes with a mushroom brown are lovely, and the chocolate ones make it feel a little more contemporary, and our roman pull down blinds are a good colour reference, as would be anything that must stay. Work with these permanent features rather than against them. I would suggest painting your walls a warm based coffee, to help mute the contrast of he kitchen cabinets and floor. Also, any cream or light clouded furniture that you fill the room with, will instantly standout as a lighter feature against them. As for colours, I would really lean towards natural tones, rather than colour. Tones are colours that have been affected by black, tints are colours effected by white, they are much more subtle and may include colours like olive greens, mustard yellows, or even teal blues, compared to their colored version of green, yellow or blue. These will compliment the natural textures in the materials you introduce. Good luck.

The vertical blinds MUST go. Sorry, but they are hideous and add nothing. Get some fabulous mid century fabric pattern in some gorgeous colours and make curtains. You can make a couple of scatter cushions also out of this fabric. Then pick out your favourite colour from the fabric to add some plain cushions. If you have gone with the patterned rug option such as asquithoatley has suggested, then just pick out the gentler colour for plain curtains to compliment the rug. Either way then choose cushions using any, or all of these colours. Then you should look for some decorative items in these colours such as beautiful bottles that might pick up an aqua, or some lamps with bases that colour to put on a side board. For the wall I suggest that you look on ebay in mid century modern and see if any wall sculptures attract you. There was quite a fad for enamelled metal wall sculptures back in the 60s which would add some life. Try to find one that also incorporates one of the pattern colours. Susan_66 made a great suggestion with a Howard Arkley print of a mid century house. You might even find one that is similar to your house style which would be fun. Happy hunting. You have some good pieces and they will work well with a bit of fun fabric or rug to link them.

Kill two birds with one stone and replace the balustrade with a full length, double sided cabinet. This will blur the height difference between the rooms while creating more if a sense of the two rooms working independently of each other, and provide a place for interesting piece or two on the top(like sculpture). In the process, you could ensure the traffic flow and furniture of the rooms works best with the passage to the lounge where it is, and if not, decide where it works best and build the cabinet either side of the passage.

I'm surprised to admit I really like the brown. I usually don't like earthy neutrals of any shading but this one is ok, it certainly provided balance for the dark furniture the previous owners had. I love the idea of the side table at 90 degrees to the start of that wall to create a reading nook/dining space and redirect traffic. You could get something reasonable tall facing toward the glass doors to be storage/extension of the kitchen so there is a sense of connection. You could then put paint, wallpaper the back of that cupboard and put up the mirror and a little table for keys. Or even have matching bookshelves back to back and use the one facing the front door as a 'wet' room/shoe storage. Ikea sells so many great units that you can tailor the combination of size and shapes open and closed to get just the right look on each side.If you do this you have to screw the two units to each other so that stand straight and appear as one. If you did use the nook as dinning space you could have all the serving/special stuff in that cupboard so you dont have to go far for setting the table and leave the kitchen cupboards for daily use stuff. When I first moved into my big home from a super tiny apartment I just laid out what I had (plastic dinning set and all) as best I could and moved them around every few weeks till I got the combination of how to use the room right. Then I went and bought more/new furniture over the next 6 months.