If you were looking at top level categories of evaluating artworks, I think that there are three levels one ought to consider (and this applies to all of the arts, not just painting and drawing). One
is overall impact/meaning/expression. A second you could call "design", "style", or "composition", or the strategy of achieving the first category. The third you could call "execution" or "craftsmanship"
or the tactics by which the plan of the second part is carried out. Of course in great art all three of these will be excellent and in harmony with one another and these three are not contradictory to one
another (as many modernists would claim ... that somehow when you have more craftsmanship you must have less expression).
