photorealistic rendering of a custom l shaped sectional sofa maintain the exact geometry proportions layout and camera angle of the original 3d model do not change the design or dimensions refine the sofa to reflect a clean tailored high end residential sofa style arm detail straight squared track arms with a clean flush face arms are slightly thick with softened edges not sharp or bulky upholstery wraps tightly with minimal seams and a tailored appearance base detail exposed wood plinth base recessed slightly from the upholstery warm natural wood tone with subtle grain variation base should feel integrated and continuous along the bottom edge cushioning bench style seat cushions not segmented with a clean minimal look tight back cushions with soft rounding at edges not overly rigid add subtle compression and realistic softness avoid perfectly stiff forms material creamy off white performance fabric with a soft woven texture not flat slight tonal variation and natural fabric depth no visible pattern keep it neutral and refined realism enhancements add slight fabric wrinkling at edges seams and corners introduce soft cushion settling and realistic weight clean but not overly perfect subtle imperfections only lighting soft strict instructions do not add pillows do not change the shape or proportions do not redesign or restyle beyond the described refinements only improve material realism softness and detailing