Here's a trick to remember when using chalk pastels. You will need: Paper Pastels

Chalk pastels can create quite delicate effects, but smudge really easily. So it's often helpful to put a piece of paper under your hand. This way, you mask the part of the picture that you've already done.

As your hand moves about while you work on a different area, the part underneath is protected.

So when you take the paper away, the colours haven't smudged and the drawing isn't ruined. Try it yourself!