Introduction
Tracing back to the 4th century BCE, emotion in art was highly valued and praised by illustrious people such as Aristotle, the Greek philosopher. During romanticism and expressionism, free expression of own emotions became a rule among most artists. Turning to the modern art, individual emotions, as point of the existence of human beings, are generally considered the breath of art creation. Among most, if not all, students of art, it is popular to follow their true and real feelings to work. However, by doing this, they are apt to produce some strange creative works with a prejudice, which can be ...