When creating abstract landscapes, we want to focus on the concept of vague observation. This means that, if we were to have a focused observation, we will inevitably want to capture the finer details of a landscape. However, when we keep our observation approach vaguer, we intend on capturing the essence and vague shapes of a landscape. This will allow us to create space, objects, and structures that resemble the real thing rather than completely replicating them in a drawing. another suggestion is to keep your hand lightly on the pencil, making your drawing less sharp and more fluid. Lastly, another good suggestion is to intentionally scribble details of a landscape that has a beautiful abstract quality to it.