please modify the existing visualization with the following changes change the cushions on the seating area to a soft blue color in the central planter located in the middle of the room place a tall elegant tree such as a white willow in the background where the window portals are visible finish the surrounding frames with white mosaic tiles featuring subtle blue patterns ensure the overall design remains harmonious modern and visually balanced with the new elements integrated naturally into the space all other elements of the visualization should remain unchanged
