Tips and Technique club made this.
First you will ink the image in White Craft Ink (This is a pigment ink) it is slow to dry. You will stamp this on black or another Dark colored Card stock. While it is still damp you will apply the pastels by daubing them on the damp image It’s ok for it to look a little messy. Once you have it the way you want it, take the swifter cloth and wipe off any excess chalk.