As I am having a hard time with seeing the reflected colors of light outside in plein air, I decided to do a little study I found in Kevin MacPherson's book Paintings with Light & Color. I used a box and changed the color around the pear with construction paper. Here are my results.
These are on little 6x8 panels
I am hoping I can apply this to the great out doors. I should probably do a few more but my pear was getting too ripe and changing color ;)