I designed the space in a minimalistic style, using only a muted green as an accent color. The furniture is all new since the vintage furniture you had didn't really match the minimalistic look you wanted.

I also did two solutions for the lightning arrangement of this living room, so you can choose what suits you best. The floor covering is used like the one sample you provided in the resources, a light oak wooden floor.

The open floor plan and the connection to the kitchen is now an arched wall that is easy to get realized with the structure elements you have in the living room, while also having an island in that corner. The position of the Tv stayed the same. Some furniture will need to be made by your local craftsman, for which I provided dimensions.