Too little pigmentation

I color the felts mainly because I find it more aesthetic and especially more pigmented. Nevertheless, wishing to try new techniques I wanted to invest in good crayons, without targeting the high end for a first down. Positive opinions have guided me to this brand that I did not know. I was seduced by the multitude of colors offered. However, I was very disappointed on the first try. Although this is crayons, pigmentation is not enough for my taste. Moreover, the multitude of colors is not necessarily useful since that differs very little shade once on paper.
The price seems reasonable to views of the mark, but not the views of quality.