It may be hard to believe that one can be happy doing a pastel on-site with only six Unisons. Here's the proof that it can work, with some creative blending. I did this work by the lake about two years ago, using my French easel and standing on the deck at the cabin.
If I did it over, I would vary the tree heights a bit. Otherwise, it was an old effort at plein-air that has never been posted.
Also, if you are visiting here for the first time, greetings. Enjoy this blog about my pastel work and the broader world of the pastel medium. You would also love my blog: The Colorist, a blog about art process and New School Color.