replace the black pillow with a white pillow the white pillow should keep the same shape size position folds and the way it sits as the existing black one with realistic fabric texture soft creases and natural shadows the color should be pure white slightly warm white no gray tone change only the color of the pillow absolutely nothing else is changed other pillows and textiles furniture walls floor ceiling lighting materials other colors textures shapes space geometry camera angle and perspective must all remain exactly the same do not change anything else in the image
