During the time prior to 1960, he produced
compositions that possess serene flowing forms
with vibrant color and texture. "Self
Portrait"(1951) exudes a feeling of peace
and nostalgia, as well as a bit of humor,
although produced during Korean War. By the
early 1960¡¯s, Chang¡¯s works gradually began
to show more implicit and lyrical expressions,
which led to Chang¡¯s creation of "Bird
at Night¡± (1961), the precursor to his abstract
paintings.