architectural watercolor rendering of a day room inside a contemporary observatory suite wide sunlit interior framed by deep reversed black steel mullions and tall glazing that reveals mountain views glass set behind heavy projecting steel frames creating rich depth and shadow warm wood ceiling panels and floors minimalist built in seating and a telescope near the window calm atmosphere of reflection and light balanced composition of modern structure and cozy mountain retreat soft daylight washes across the floor and steel frames rendered with precise pencil linework gentle watercolor textures and fading white paper edges hand crafted architectural illustration style