I think the golds in your frames and other wall hanging would go very nicely with the red JudyG posted. You might start with just a couple of walls as it's going to be quite dark. I painted part of my bedroom a similar color--it was the color of canned chili, and my husband thought it was too dark so I changed it. I think your furniture would look wonderful with that. And with paint color, I told my husband that I'm not done with the bedroom until I say 'I LOVE IT!' You should do the same--you want to love looking at your living room.

First thing I'd do is throw the grey carpet up onto the sofa. Meaning it's colour. Introduce a thick grey throw, loosely folded over one of the seats, up over the back then layer your cushions in front of that. Building up onto it will scatter your colour palette around and start bringing it all together. It will be softened. However keep your colours to a minimum, perhaps 2. This does not include tones of colour, as many as you like will add interest and sophistication. In a chocolate and grey interior, it could be luxe, but I am thinking shades of salmon and mustard up against creams and greys. You also need to link your walls to the sofas, as the floor area looks heavy in comparison. To correct it you either introduce the wall colour down onto the floor, or the floor colour up onto the wall, it will balance it out. I'd place large black frames with rich colours of chocolate with perhaps gold leaf or metallics. Keep it abstract to be modern, or even go the opposite with some classic charcoal pencil sketches in a pair of large frames. The images will start to personify your space, so choose the context of the image that you can continue a theme from, like architecture where you can place related objects on a side table, even coffee table, I love tables with reference books that on a Whim you can pick up for inspiration. It shows who you are and what you aspire to. Or it may be floral, landscapes, paintings whatever, find something that works. Don't necessarily go looking for art, you can make it, save an image online, print and frame to suit you and your budget. Even an a3 image can be framed in a larger frame to make a bold statement, just add a frame Matt that you get from a picture frame shop. Ikea also have ready made large frames too. For some reason emerald green keeps popping into my mind when I look at your room, maybe some plants, foliage can liven a space but also, slight little traces of it around can freshen a space. Maybe thin picture frames, or spines of books can bring this in.

@jactheshe, it would be very hard to imagine. Even digital photos of the colours together can look so different. And depending on how your house is situated & how the light plays on it, that changes things again. I was looking at a picture online of a house using woodland grey with colorbond dune. The dune colour looked completely different to the colour card on the charts. If you have some large lightweight boards around, I suggest painting them out with colours you're considering. Or getting a large sheet of foam core from office supplies or sign companies and using that. It would be light enough to attach temporarily on the facade & give a better idea of which colour works. That way the angle how the light hits the colour is accurate.

What natural light do you get in the room/what orientation? i.e. is it a 'cold' or 'warm' room? If it's a colder room, I'd go with a grey with orange/red undertones to warm it up a bit, or if it's a warm room you could get away with a cooler grey, maybe green undertones to compliment the maroon. Or you could even try a green rather than grey. The Aerobus is a blueish grey so will be cooler. As others have said you would probably want a lighter tone than this for the walls (unless you're purposely going for a dark dramatic mood). 'Miller Mood' is a couple of shades up in the Colour Atlas. Get sample pots and paint a section on each wall, or paint a white bit of card and stick to the wall to see how the light is at different times of day.