CUBISM
A style of painting and sculpture developed in the early 20th century, characterized chiefly by an emphasis on formal structure, the reduction of natural forms to their geometrical equivalents, and the organization of the planes of a represented object independently of representational requirements.
REALISM
Realism in the arts is the attempt to represent subject matter truthfully, without artificiality and avoiding artistic conventions, implausible, exotic and supernatural elements. Realism has been prevalent in the arts at many periods, and is in large part a matter of technique and training, and the avoidance of stylization. In the visual arts, illusionistic realism is the accurate depiction of lifeforms, perspective, and the details of light and colour.