hi we are using these 2 different veneers in our house. the sheets are already applied and now ready for polish work. i first set of pictures you can see how veneers looked after the water but now it has completely turned out kind of black after the polish. what has gone wrong in this?, is there anything we can do to lighten the tone of the sheet or the polish job isn't done properly, what can be done from our side ? is there a technique to lighten the shade of the veneer or it needs better sanding job for the veins to protrude....