imagine ultra realistic architectural interior rendering of a two story accessory dwelling unit adu interior view from narrow galley kitchen toward enclosed stair hall minimalist tropical modern architecture compact kitchen defined by interior partition walls integrated base cabinetry and appliances aligned along one wall smooth plaster or concrete interior wall finishes restrained neutral material palette low ceiling height over kitchen creating spatial compression transition into a vertically articulated interior stair volume sculptural split flight stair with floating concrete treads and slender black metal railing fully enclosed by interior walls indirect daylight entering through a controlled vertical window and upper level opening no exterior atrium no open courtyard strong contrast between compressed kitchen and released stair space inward facing and calm atmosphere soft natural daylight only no decorative lighting clean architectural detailing professional architectural visualization eye level interior perspective raw photo realism ar 4 3 style raw