I am usually very lax on what meets a challenge, but I think it would be unjust to vote B & W tonal ranges very high when other people worked to create an image incorporating a light color into a white background. I don't know if that is what you meant to do with the bottom, grayer egg, but it actually is more distracting to my eye than interesting. Sorry.
This is a nice shot. Each item in this image is approximately the same color; however, with the way the items are placed, it almost seems as if the shadow defines the images and gives the shape. Nice work.