In painting, whether oil, acrylic or pastel, the beauty of your edges are like the melody in the song. Often overlooked, it's truly the sweetness of the edge that can make us feel the beauty. Just look at Wolf Kahn's subtle edges in my last post. WK is the master. Examine the close-up of his pastel that I posted (above). Yum.
The tools are the same no matter what the medium. Shifts in value, color, and temperature and use of thick and thin make it all happen. When you look at this pastel you see all the tools in action. The one hardest to see in a photo is the thick and thin pastel. Pastelists use of light layers and thick chunky pieces just like oil painters. I feel that paintings that use of the same amount of pastel (paint) lose that air of mystery, that look deeper feel. Advice- use your tools. :-)