Tall sculptures or maybe a potted tree on either side of the column if you're into plants?

This kind of thing would distract from the awkwardness of having the back of the couch open, imo. https://www.theclassycottage.com/john-richard-a-set-of-two-standing-tall-statue-sculptures-jra-11786s2.aspx (might have to copy and paste link manually)

I don't love it in the middle of the short wall. Can you shift everything and have the sofa face the piano... with the 2 chairs then facing the sofa? That could also solve the problem on the chairs having their backs to the fireplace.

I agree with Paula but if you want to keep that set up, you could try moving the couch forward and adjust chairs accordingly - you may have to place them facing each other vs on an angle to get the extra room Maybe a console behind the couch would help make it less awkward if it allowed you to still walk behind and it not be up against wall

Ask yourself the following questions and you may find the solution.

Which view makes you happiest, looking at the fireplace or out your gorgeous window?

Is the piano played on a regular basis?

Is it necessary for the desk to be located in this room?

Are you willing to close off one of entry ways into the room? (I would choose to close the one closest to the entry door).

My thought is to continue to have the couch and two chairs facing one another, however give them a quarter turn so their bacsk are to the windows.

I so appreciate all the ideas! I used to have the furniture rotated so the sofa looked at the lake and the chairs looked at the garden, but the room is too narrow and still looks odd when you view it from the foyer.