How about a nice piece of wall art to fill the space between the bar and TV?

it is a stunning classy room, love the floor and the fabric on the chairs, you already have quite a useful bar area.....leave it blank for a bit so see if anything needs to go there at all...there is plenty of beauty to look at....but i do see a need between the chair and sofa for some kind of end table for drinks.......I would focus there.....but yes some art with some color, a nice virtical piece would look good....I would take a color scheme from your strip of marble for the art colors.....to complement the chair and marble with maybe pops of red since there is bits of red in things at the bar cabinet....I'll look on art.com

You don't need anything there. You could add a painting or photo,,something that you like to look at. If you don't have enough lighting for the seating area, you could get a floor lamp

Spina floor lamp · More Info

You could place a narrow serving console with a tall skinny lamp on one side and a live orchid on the other. Also like the idea of a tall vertical piece of fun art. Check for posters at art.com