Okay, that helps seeing the other angle. Now, remember that doing this on a monitor is kind of tricky, because perspective and proportion can be hard to judge. Here is what I would try. The first thing I would do is paint the small wall that the fireplace is on (just the little angled one) in a rich rusty fall red. Take the "H" and mount it above the tv, centered, and then add a wood curlique appliques on either side, painted black. Something like this, that will pick up on the shape of the arms of the couch and loveseat. You can get them at most home centers and some of the larger craft stores. Or, iron ones will work if you can find those. first ones on the page Take the couch and put it directly across from the fireplace, at the same angle. Put the loveseat to the left of the couch, at a right angle. Get a table between them to anchor the arrangement, with a lamp if you can. Once you do that, your little black chest may have to move. You could try it under the window, and add a colorful bench cushion on top. A fabric or leather ottoman, maybe round, would be a nice addition to work as a table and additional seating when you need it and would pick up on the curves of the furniture. I don't mind the clock being on that wall, and in fact I think you need some taller things there to balance the fireplace and the windows with the drapery when you get it. What I would do is once you move the furniture, take a look at that wall. You might add some floating shelving that is arranged in some kind of staggered fashion with the clock as a part of the grouping. That would be a place to add some touches of color with vases, art leaning on the shelves, etc. If there is room below that, you could add a console table and lamp there. As for your counter stools, I would do them in a brown-black, that would bring out the colors in the cabinetry but not be as strong as a solid black. Colorful cushions would be a nice addition if you like. Then bring in the drapery/window treatments in the dining area. Add a throw and a few pillows. Maybe a runner on the dining table with some red. If you are worried about the fall leaves feeling out of place year 'round, look for some berry stems in the reddish color, or some tall orchid stems in that color (oncidiums or cymbidiums would be nice). Mix in some grassy stems and a couple of larger green leaves, and it will work for you.

Curtains would be a good idea. Even though you have blinds for privacy, curtains make the windows look finished. A little eyeliner besides the mascara. I would not do a colored curtain here. Curtains are just to darn expensive to have to switch out when your color palette changes. I would suggest white or off white, whichever you prefer in a silk or silk-like fabric, and get a marvelous trim for the edge. The edge trim can be in a white and black or whatever color you want to take from your rug or elsewhere in the room. I would not do a curtain trim in gold here because I see 4 windows, for 8 panels, that would be a lot of gold. You want tasteful gold embellishment in a space, not Liberace in Las Vegas. Here are some examples of trimmed curtains. Buy the plain curtain, and then buy the trim of your choice, and buy extra trim to embellish throw pillows, and buy coordinating different scale trim for other throw pillows. Another curtain option is a white curtain with a subtle pattern woven or printed on it.

As far as arranging furniture with the columns, I would tend to ignore them and group seating around the fireplace. You are always in good company with a more flexible 3-seat sofa and two upholstered armchairs (or swivels.) I think a sectional will just add another complication to the space. What is opposite the fireplace? Are there any floor outlets near the columns or actually in them? Is there any electrical wiring in the bulkhead above them? They might be interesting if lighted. You could also install some glass shelves between the two that are near the exterior wall. Lighted from the top, that would be a great display for something like colored blown glass. As for the lighting, you can find less expensive variations on those. Scaling them for your room size will also lower the price somewhat.

I would move the desk to face entry with some art above. Sofa in front of window with 2 chairs across from it, a coffee table between. Facing the fp, if you wanted add’l seating you can look for an upholstered bench which will keep things feeling open when you walk in. Flank the fp with 2 consoles or small chests if you need storage. Place lamps around the room for lots of ambient light