edit the existing render and keep everything else exactly the same do not change the room layout furniture lighting millwork materials camera angle decor or composition only adjust the display element in the glazed niche replace it so that it shows only a narwhal tusk not a full narwhal or any animal figure the tusk should remain in the same exact location behind glass and displayed mounted on a support base as a refined sculptural object make the tusk appear straighter and more upright elegant and realistic with proper display lighting do not make any other changes
