As promised, I worked on rock studies this week. I found a variety of rocks including some semi-precious stones.
Here are a couple of studies looking at line and value.
And a color study. I suddenly remembered that I have the names of each type of rock somewhere and I need to add that to my documentation.
Here are a couple of texture studies. I have a few more of these in the works.
And here is what I think that Montana river rock would look like as cobble stone. It is interesting what you can come up with when you examine things closely!