You seemed experienced. Can you be over 30 by any chance?Since when did girls from the west bleach? Also, when clevage heaves it create some shading. In any case, the lower portion of the bossom should be the same colour or lighter than the rest of the skin. It appears to be. Also, lighting and filter can create shadows where there are none. Some women also contour their bust (darker) so as to deceive. It casts a faux shadow where there is none, making one look more endowed than they are.