I recommend avoiding details and shading the piece until its fully sketched in
you can blend charcoal with a piece of tissue if you use your fingers it will leave prints
if you are in the process of shading place a piece of paper between your hand and the paper to avoid smuging
you can use a slice of bread to remove the graphite like a stretch eraser
<span>He used the one-point perspective as a way of creating space. This perspective used the concept of a single vanishing point in the distance as a way of giving the illusion of space. Many other drawings before this used multiple vanishing points, so the idea of having a single point in the distance that all objects pointed toward was a revolutionary concept.</span>
