Hi there this is my second story as you probably know. This type o sketch isn't the easiest to make. It take precise placement of the pencil and quick movements.
This is how u make it
you need to have to have quick hands To make this type of sketch. You need to be able to know how to blend as well. You need to blend the reflections on the water. You need to be able to use your blender to create smoother effects in the water but don't blend the cliff as much to Create jagged effects.You will be using a 2b pencil a blender (if you don't have one you take a paper card roll it up and tape it to make a blender) and u need a 5h pencil and a 5b pencil