Landscape photographers often deal with vast, expansive scenes, and as such, they need to think about many different areas and layers of the frame. This excellent video discusses the importance of adding foreground elements to your landscape photos and how they can improve your images.
Coming to you from Chris Sale, this great video discusses the usage of foreground elements in landscape photography. One of the reasons it is so important to consider foreground elements in landscape work is a consequence of the fact that the genre often uses wide angle lenses. If you have ever taken a shot using a wide angle lens without an element in the foreground, you may have noticed the resulting image seemed a bit empty, as if the background was just a wall with a lot of empty space in front of it. Adding a foreground element can lead the viewer's eye into the frame, and with careful positioning, give them a natural path on which to travel through the image. Check out the video above for the full rundown from Sale.
And if you really want to dive into landscape photography, check out "Photographing The World 1: Landscape Photography and Post-Processing with Elia Locardi."