Muddin is the only art i need, i'd go muddin every god darned day if i couyld
This is a hard one to answer. The reason is that you are asked to distinguish between 2 schools of thought that are very close together. Not only that, but the characteristic you are looking for is not mentioned in either description.
Since semiotics brings in many more fields of study than does iconography, then I would go with iconography. This school of thought seems content just to find the symbols according to its description. What is done with them is mentioned in the other school but is not elaborated upon.
My answer would be iconography.
This painting is significant for art history because it challenged the conventions of landscape painting. It is a representation of a natural scene, but nature itself isn't the real background for the painting. The background is the painter's personality and inner psychological struggle. The wheatfield is strikingly yellow, against the deep blue color of the sky, leaving an impression of uneasiness and agitation, rather than serenity. The scene is an epitome of deep, unresolved mental anxiety, from which there is no way out. The middle road, central to the painting's composition, leads nowhere.
