I don't feel that the image conveys instantly recognizable decision. Nice photo, looks like an ad. Although the choices are laid out infront of me, the photo does not motivate me to select one... perhaps it has something to do with the grouping.
In the spirit of this being a difficult challenge for all, I'll just suggest that it would be more true to the challenge if perhaps a hand were in the shot "deciding" on a color.
Arangement and light is nice though.