modify only the sofa cushions keep everything else exactly unchanged merge the current segmented cushions into a single continuous design one single seat cushion no visible divisions or seams one single backrest cushion continuous no separations details maintain the same fabric color and texture keep realistic upholstery behavior soft volume natural folds slight compression remove all visible joints splits or modular lines edges soft slightly rounded edges not rigid subtle stitching only on perimeter if needed no internal seams strict do not change sofa structure proportions or position do not alter lighting scene or any other object goal a clean continuous sofa cushion look more minimal and refined with natural realism
