improve the realism and rendering quality of the image while preserving the exact existing design camera angle composition furniture layout materials colors lighting wall paneling millwork ceiling moldings artwork chandelier flooring and proportions only make one design adjustment add a clear protective glass panel enclosure in front of the narwhal tusk display inside the tall narrow recessed niche the glass should be transparent and subtle with faint realistic reflections and visible glass edges like a refined display case do not add handles hinges metal frames extra shelves hardware or any decorative details that are not already in the design the narwhal tusk must remain slender and delicate approximately 9 cm in diameter not thick or oversized keep it vertically centered in the niche with a natural ivory bone texture soft spiral detail and a matte organic finish not metallic improve only the image quality and realism sharper textures better lighting balance natural shadows realistic reflections cleaner edges and a professional photorealistic finish do not redesign anything do not change the moldings millwork furniture wall panels materials colors ceiling artwork chandelier flooring or proportions keep everything exactly as existing except for adding the subtle protective glass to the tusk niche