I'll get the ball rolling. I don't think you need to do much to change what you have, because you've done a beautiful job already. Here are a few suggestions just to add in some color. I worked off the little bit of color you already have in the rooms.

few ideas. it's a great spot, but I think this could look amazing w/a few changes. as for the rug, anything you like would work as long as it's large enough as mentioned. here is a simple sisal or a jute here's my idea. you have a great wall and great space for doing a built-it bench seating/storage along that wall. As you have it now, it's just not be used to it's full potential. Have a look at some ideas, and imagine a bench built in against the wall. you could to any type of design, cushion colors, even a settee. check out the lighting, art, colors notice the little corner cab. you could find something on craigslist and paint it yourself. this one is nice because of the built in cabinets. you wouldn't have to do both. you could do one in the corner. you could even do a little L shape in the corner like they have here.

Is the bench in front of the fireplace small enough to fit on either side of the fireplace under the window? If so, put it there and get a matching one so you have benches on both sides. If not, get two benches that fit. That lounge chair/ottoman combo to the right of the FP feels out of place and isn't part of the conversation area. I would find another home for it. This arrangement has the added benefit of not blocking one's view of the FP from across the room. I agree with continuing the jute rug and removing the hide rug from that area. I would add some throw pillows for the white chairs that have more of your sofa's chartreuse color in order to tie the two spaces together. If the bench is moving, you now have room for a small, low coffee table in front of the chairs. Lastly, the accent wall color you've chosen is lovely, but doesn't really coordinate with the wallpaper. I would have picked up one of the lighter greens from the wallpaper to pull it all together.

You aren’t sharing much information. Without a picture of the rug, and entry no one can make specific suggestion. Don’t duplicate the rug. It will no longer be special.