Columbia subject headings:
Color in art.
Composition (Art)
Nature (Aesthetics)
Painting--Technique.
Perspective.
Harvard subject headings:
Art and science.
Art--Technique
Color in art.
Composition (Art)
Nature (Aesthetics)
Painting--Technique
Perspective.
Princeton subject headings:
Color in art.
Composition (Art)
Nature (Aesthetics)
Painting--Technique.
Perspective.