For others following this dilemma, the OP has made good individual choices--but the choices don't work well together. Yellow walls not great with reddish floor. Beige-yellow chairs with gray sofas have same tones--no contrast or pattern. Nice red chairs don't play well with new furniture. Navy curtains don't work with anything. It's like buying a sweater you love but it doesn't go with anything in your closet, then going out and getting another thing you like that doesn't go with the sweater, which doesn't go with other items, and so on. jck's two rugs do some of the job of pulling things together. Going forward, the OP should work with gray and yellow if things get changed out.

You have a very inviting home. I would advise a rug with more color than what I see so far in your decor to avoid an all-greige look. After years of gray the modern trend now is toward more color, but a lot depends on your personal style I'm rather curious what the rolled-up carpet looks like. Try looking at traditional and transitional rugs on esale.com, a company that will allow you to return rugs without cost. e-bay also has a good selection of rugs. Since your furniture has solid colors I would investigate rugs with a pattern and different colors to bring some complexity and interest to your scheme. You can then repeat some of the colors in pillows. The pillows you show are rather drab and colors such as blue, terra cotta and leaf green would look lovely.

Look at Flor tiles. You can customize the size and they have some wonderful mid-mod style patterns.

I also like the foyer idea...only the back of the couch and a rug runner from the door behind the couch will work too...keeping the cozy couch area and fireplace as the focal point..not sure facing the dining room is what i would want to see from the couch