add a realistic exterior view through the window featuring a singapore city skyline with hdb buildings ensure the view looks natural properly scaled and consistent with the interior perspective keep the outdoor lighting realistic and balanced with the interior environment enhance overall rendering quality by refining lighting material textures reflections and shadows set the space lighting to a warm 3500k tone with a comfortable and realistic atmosphere do not change the design layout camera angle furniture or material proposal maintain all original materials colors and finishes exactly as provided produce a clean professional photorealistic architectural render