Hello,
Here is my design for your project. My idea was to create modern living room. The center and the most beautifull part of the living space is sitting area witch consist of large sitting sofa, with 3 seats and chaise, nice modern coffee table with shelf and drawer, one sitting sofa and the false wall made of dry wall construction with niches wich are covered from the inside with dark brown wenge wood. The entire inner side of wall is covered with venetian light gray polished plaster with high gloss and reflection, wich gives the entire composition high contemporary look. Dining area is composed of eliptic modern extensible tabel with glass top and comfortable flexible chairs for full enjoy. Cupboard as per your requirement is also modern looking with glass smoked door, and the drawer runner push to open.
All of the above makes the entire living space modern looking and pleasnt for eye and spending time with friends and familly. Hope you like my idea...
Best regards!