This is what would be reflected in mirror

I really think a nice piece of art would be nicer there than a mirror. Art adds color and personality to the space. The mirror would not reflect anything deserving to be reflected, even though your home is BEAUTIFUL! I am guessing you may be thinking that, too, since you posted the pic of the opposite side of the room. You have a neutral room, which is my favorite kind, so you get to choose about any art you want and it would work there.

First..raise the valances on your windows to go as high as possible and the bottoms just covers the blinds header. I think a very large round mirror would look good in that location. Or choose a rectangular framed mirror but hung vertically. Same if you choose to go with a piece of art the you like..I would choose one that is taller than wider.

Raising the valances is a great idea, as you do not want what you place there to be taller than the window. If you make the window appear taller, you can go bigger with your choice.

Yes I was thinking if getting long white curtains and hanging up close to ceiling, I heard ikea has inexpensive ones

Can you use long ones with the floor radiators/heaters right there?

a big colorfull painting would be nice,ofcourse i do not know what art you like,but just had to look for something i might pick for the fireplace.......

Double post. Need to delete one of them (:

Do you know how to delete? I can't seem to find