The fence’s texture is smooth and curvy; For contrast, the fence is dark on certain parts but is very bright from sunlight on others while having a flat and mostly darkened background.
The rocks are smooth and mostly round, while some have more straight and rugged edges; The left most rocks are much darker and bold than the rocks to the right which are all very light in contrast, while finally being tied together by the very dark black background below the rocks.
I feel all my sketches achieve what my descriptions entail, including the roundness of the rocks . the contrast of the darkened and light parts of the fence, the rocks’ very dark background, etc.