I also added some shadows to the boulders and liked the effect it gave.
The next process was to sand and and smooth, using the bristle sander and also a small 1/2” cylinder cushioned sander. I have about wore the rubber cushioning out on this one, but it is an excellent little tool that does a great job on sanding small areas smoothly. It is like the drum sanders that let you cut your own sandpaper to fit, but it has a soft rubber cushion that gives somewhat the effect of a small inflatable drum sander. I use this to smooth the sky and the surface of the lake, as shown below.
Thanks for looking and thanks for your patience with such a long post! I am using this blog as a way to practice and improve my limited writing skills and I really appreciate the kind remarks from those who find my ramblings useful.