Refers to any person, object, scene, or event described or represented in a work of art.
The arts with a subject are called representational or objective arts.
Those with no subjects are called non-representational or non-objective arts.
Types of subjects:
landscapes, seascapes, and cityscapes
still life
animals
portraits
everyday life
history and legend
figures
history and mythology
dreams
Medium
This refers to the material or means that the artist uses to objectify his feeling or thoughts; pigments in painting; stones in architecture, sound in music, words in literature; and body movements in the dance.
Form
This refers to the physical qualities or characteristics of the image.
It is about the use of color, lines, space, and other elements.
These elements are arranged to observe unity, harmony, rhythm, and other principles of design in the production of a particular artwork.