Features of Impressionist paintings involve comparatively small, thin, yet noticeable brush strokes, open form, importance on the actual depiction of light in its dynamic features usually emphasizing the consequences of the passage of time, common subject matter, the composition of step as a critical element.
Explanation: clay by nature is not as strong as the others mentioned in the alternative and it can only be worked on when soft and form desired shape when dry because it is malleable making it an unlikely carving tool