What we concern is ,the drawing/picture of the product is taken with the actual product sample and already there are colour difference between the two .( The colour of the product is green in the picture/drawing),If we use this same drawing/picture to compare with the new product sample ,we believe the colour difference would be much greater.
May we suggest to have the new product sample picture taken ,then update the drawing/picture.原始样板，我想用original sample会更合适，对吗？original sample 可以，previous sample 之前的 或 the very first sample最初的一个 都可以。