strict background replacement only replace only the background with the provided reference image keep the original sofa completely untouched and identical the sofa is a locked photographic element do not regenerate redraw reconstruct reinterpret or modify it in any way preserve 100 of the original sofa s fabric texture exact gray color fine weave scale material appearance geometry proportions dimensions cushions seams armrests legs and details preserve the original sofa pixels do not apply new textures recoloring smoothing sharpening or ai enhancements change only the wall and floor to match the provided background reference preserving its exact colors lighting and perspective keep the sofa centered at its original size and camera angle add only a subtle realistic contact shadow on the floor final result the exact original sofa completely unchanged naturally placed in the new background absolute priority do not modify the sofa background only
