I have been painting on this surface since yesterday morning at 10 AM when it began as a demo for a couple artist friends. When they left my studio two hours later, it looked nothing like this. In the time since then it has been washed off several times and has been poked and prodded. I even "painted" in wet pastel for a awhile with a bristle paintbrush.
Finally, in a simple act of kindness to both myself and the pastel surface, I quit working on it. I don't know why it was so hard. I think I need Spring!