When this project was first explained, I did not understand. I was over thinking it. When I began to do it I started to understand. I have to use only Primary and Secondary colors on my broad and narrow for this study. I couldn’t mix them any further, or use white. Making the narrow was abit diffcult. For narrow, you have to only focus on a few colors. I wanted to make a high key, so my main colors were, yellow, yellow green and yellow orange. For broad you have to use all the colors.
Your broad range prismatic colors are very nice but I feel the narrow range needs a bit of work. The darker yellows look kind of muted to me.