How do you go about doing rocks and large land masses? Looks like you fill it in, possible cross hatch the side with more light hitting it, and then hard erase the edges? Or for the lighting bit do you use a certain brush?

Been using your tutorials to improve on my landscapes, and I have yet to get texturing down. I for the most part do patches of varying colors and then outline areas with a textured pencil tool (clip studio paint) to bring out the texturing. It's effective but not very close to what you have, which is what I'm trying to go for.