I did this wall size drawing of a tree in chalk about a week ago. I have never done anything in chalk pastel before but man I loved doing this. This drawing made me want to work HUGE for the rest of my life. It is so much more entertaining to work big. Anyway, managing darker colors and getting really subtle neutral hues was kind of a challenge that seems to just come with chalk I guess but working within the limited palette of the chalk really taught me a lot more about color.