create an ultra realistic photorealistic render of the exact shank shown in the original archicad model the shank is fully covered with a realistic stone effect material imitating natural stone the interior inside surfaces are cream colored with a smooth matte finish strictly preserve the exact original archicad design dimensions proportions geometry structure edges openings and positioning do not modify resize reshape add or remove anything make the stone effect surface look highly realistic with natural stone texture subtle relief realistic material depth accurate roughness and natural light interaction the cream interior should remain exactly cream and have a realistic matte finish use a corona renderer style photorealistic quality with realistic global illumination ray tracing natural shadows accurate reflections and professional interior product photography the final image must be sharp clean detailed and highly realistic without blur or artificial cgi appearance important do not change any dimensions colors materials details or design elements do not add handles decorations led lights furniture accessories or anything that is not present in the original archicad model only transform the existing model into a realistic render