The following video shows that it is possible to color tiny parts of a drawing with oil pastels, without layering and then scraping the top layer:
I wish to know how is that done? Oil pastels by default do not have sharp edge. They are thick and round.
Are we expected to sharpen them like a pencil? I guess that would waste a lot of color. Or is there a way to sharpen the oil pastels without much wastage?
What is the way to color tiny parts of a picture with oil pastels?