How to Draw Texture of Lumpy Rocks!

Can you explain how to draw and paint rocks that appear quite a lot in the background? Even if you use analog or digital tools, it's a bit difficult for us to express the unique rough texture. This time, I will show you how to draw various rocks and texture using analog pencils and watercolors and also thick coating technique. Let's be able to draw rocks freely by searching for a method that suits your level and tool. Please have a look!