Patrick Connors asked:
AdhillsGal is quite right, the sketch is lovely. This drawing is a large improvement over the last- and you kept a fresh outlook.There is an integrity to the space of the drawing, which does not occur in your last drawing. By this, I mean that the flow from the foreground, through the middle ground, and to the distant background has been achieved. Let's look at how the structure could be improved. In the foreground it would help to somehow secure this plane so that the eye does not go too quickly into the middle ground. If you look at your digital reference you can see that on the left side where the posts are sticking from the dunes there is a shadow mass indicating a change is direction of plane. This would be useful to place as it anchors the foreground plane[s] and also "rewards the eye" while it looks at this area before moving into other parts of the drawing. Also, it may have been of use to not have cropped or focused your drawing. Looking at your reference image, just the little amount more that it has helps the structure of space. Artists often like to crop the drawing to give it more impact or try to focus in on what interests them but this focus often sacrifices space or the illusion of depth and thereby gives the viewer a compromised context. The viewer is confused as to the orientation of space and the focus of the work is weaken. Adding figures to any scene gives a particular complexity and in this case, your idea is good. Tonally, the figures are too simple, and this is a difficult balance to achieve. One does not want to overwork them and isolate them from their pictorial space; yet, on the other hand, one does want to give them their due. In doing this, you will need to disregard the reference material information- the photograph has a tendency to not read space the way humans do and just ask what the drawing demands. This will not be easy, but in the long run your work will benefit. You may want to look at your drawing in a mirror to see how to approach drawing things in the middle ground. It may be of use not to think of them as "people" but components that either confirm or compromise your spatial illusionism. Look forward to seeing your next project.