Oh, and a few months ago, I was playing around. This is what came as the result :D

I could see a set of three pictures with white or silver frames and anything really that just incorporates your room's color. Make sure they are large enough to fill most of the width. You may also want to add more pillows and large shams type pillows for a more interesting and complete look. Your lamps are a bit too small (see lamps' proportions in pictures). Hope this helps.

I saw the neutral tones with beige/peach accents and thought -- color! I did a screen capture and put in my painting, Child of Eden, because the greens interacted so well with the room. (Not sure about the size ratio -- the framed picture is 30 x 26.) As a fine artist, I tell my clients -- when you choose artwork for your home, the most important thing to look for is what you like, and what makes you smile -- and it will fit into any color scheme you choose, simply because you love it. When we start over-focusing on matching the color scheme, we risk buying something for the color scheme first, and our liking it second. Both you, and the artwork in your home, deserve better than that.

squeakerd - it is really hard to get a perspective on the whole area but if this is part of a much larger area then I feel you need to first decide just what you want as the end result. Do you just want your entire area to be one open plan or do you want to break it down into visually defined areas within the open plan. As you have the area now, I don't feel any cohesiveness between your table and the sideboard, I think I would move the sideboard to the end wall, it looks more like it would belong there, even just by the shape of the room. Definitely a larger rug will define the space better - just be careful of any trip hazard with the door nearby - but before you decide on the rug, consider window dressings and whether you want things plain or introduce some bold patterns and what colours look best in the area. Artwork can go where your sideboard is now, but again think colours and impact of design on the whole area. It is all very well to build a room around one piece, but you need to look at the impact that piece will have on other items and what limitations it could cause. I would suggest you set aside some serious time to look through photos on Houzz, especially if you can find areas similar to yours, till you find what appeals to you, put the photos into your ideas book and use that to build your room. I have found this invaluable in the past and it has saved me many an expensive mistake.