I think that it is fine the way that it is. A book or two laying on its side on the side table may add interest, and maybe more the objects on the side table closer together.

You just need a larger table, something rustic. A copper lamp would look good on it, perhaps a few taller vases.

I like it as is, although I do like the idea of a copper lamp or vase.

Floating shelf! See inspiration pics.

Wallpaper that has an industrial look

Or this one

With a bit of copper in it

Concrete-look wallpaper

A buffet / sideboard with with a minimalist approach in styling will suit the space in terms of scale. Few accents to add on top of it : A leaning framed art , a set of 3 candle holders , a small plant, a set of books maybe.

I love everything about this room. You just need this:

I like it as it is.

Hi. Pretty room with great natural light. The room has lots of hard edges in it from the many windows and the dining table. It needs some softness. If you put a small lamp on that table buffet table that has a fabric shade and then an accessory that is round (a pretty bowl) you might find happiness. Overall though the room needs to have fabric - an upholstered chair in a corner, cushions on on dining room chairs and a coordinating rug of a good size under the table in order to warm things up. You are so close - this won't cost you big $$$. Good luck.

Or you could lean a striking piece of art against the wall. Maybe add sheers...

I agree with the rug idea. I think you need a little texture and softness.