Install large dimension of sisal giving texture to floor area and making it crisp & more uniform. Parqueé is too busy. Exchange coffee table for a round or curvaceous form, preferably glass top.
The lamp is under scale so something larger, chunkier OR a bold, contemporary floor lamp (Catiglione Arco) would improve look. Soften windows with a tailored Roman shade. Bold and bright
pillows. You seem to like blues, beige, greens might be considered against your dark brown.

You could do a gallery of black and white photos on the wall behind the couch. With that I'd go with a pop of a bright color as well, for accessories such as pillows, perhaps a white throw and fuzzy pillow as well.

Thanks finchie. A floor lamp is a good idea. I was also thinking a white fuzzy pillow Emcz..thanks.