You have a lot going on texture-wise so I'd probably keep it simple in terms of rug texture or there'll be too much going on at once. Warm would do well in this room though, so that's good! You mention it's away from the light outdoor area, is this photo an accurate representation of the lighting you normally get in this room? So in summary, you might want to have a look at rugs that don't have much texture, and are a bit brighter in colour to help brighten up the room. Below are just a couple of examples of rugs that could work, and one more neutral example.

Hi, did you mean to attach a photo?

I agree with leather. With all of these rich colours, like some of the others have said, I agree with a dark tan type colour, especially if you like worldly textiles and woods. There's a great sofa in freedom called the hermitage I think, in a tobacco colour leather with some studs around it. The pics don't do it justice. The leather is so soft and gets a little lighter with added character with age, yet it still has a modern feel. I recommended it for a friend to help redesign her place and she absolutely loves it, so does her little one, and her partner. Comfy and you can lay the whole length on the 3 seater.

What are the most expensive rugs?