Actually, the distribution you propose is the most appropriate, since the dining room is close to the door, so that access to the kitchen is quick. The living area, located next to the window, is the brightest in the living room. We suggest you place the L-shaped sofas, better than facing, and delimit the area with a carpet, which will bring warmth to the room. Take advantage of the space with a light library and symmetrical modules (as is work, make several designs until you find the most appropriate. If you want to close a shelf, do it with glass doors). It is preferable that you do not place any seats under the window, which could reduce the feeling of spaciousness and open space. If you need additional seats, use poufs, placed in sight or integrated under the coffee table.