Sadly, it is really hard to erase prismacolor. So, one has to plan all of the highlights from the beginning and build up the picture in layers.

What I usually do is to draw the outline with graphite pencil. I then lay down the highlights in white and start layering other colors around the highlights. I have not mastered that technique, which is why you don't see intense highlights.

Prismacolor has a colorless blending tool that can pick up some of the extra pigment. I was able to remove a mistake with the colorless blender. One can lighten things with paint thinner.

Professional artists usually lay down a dozen layers as they build up an image. Some use masking tape or compounds for the highlights. Others use white ink for the highlights. i outlined objects in the picture with ink.

PS: There is a line of color pencils designed to be erased. I have not used it.

!BEER