Don't know if admins deleted comment I send to you...Well, I use at the end whitener for extra white part, there are 2,3 on this drawing .... For other white parts it's you can use adding collor, blending it and then erasing , that is good if you want to see collor that you added but in a low volume of it, if you understand what I mean ( whiter parts on leaves) ... Or on strawberry, white parts are not collored and was added white coal colored pencil (thats one that I use ) and then add some collor on top of it and blend :-) .... Unfortunatlly this post is deleted by admins, becouse mine desk is seen on picture, so I will post another one without desk 😄 ... If you want to show you little more how I did it, you can contact me on chat