Huxing design, please help me.

Have you seen the geomantic omen? The living room is still in the same position. Do you think it is reasonable to walk up the stairs to the living room by 1m aisle? Four rooms and one bathroom are obviously not enough. It is recommended to have multiple bathrooms. Now the bathroom in the picture cannot be separated from dry and wet, with a total area of ***13 square meters. If you want four rooms, it will be a little compact. Do you need to get a living room of 3 square meters? You can't find a decoration company, can you?