Sketching using Willow Charcoal on Bond Layout Paper for a chance of pace. Kinda like this medium much more than pastels because of the flexibility you have between producing silky smooth gradations or really hard defined edges. Messy stuff but great contrast can be achieved with it. Really forces you to work big(A2 here) using big shapes and focus on planes as well as overall composition and silhouette. Prolly try my hand at a few more of these.