Summertime: Number 9A , by jackson pollock , 1948 , abstract , Action painting style , from Drip period period , Pattern, Organism, Branch
A painting with black and yellow lines on it.
 an abstract painting. The painting is composed of black, blue, red, and yellow lines. The black lines are splattered all over the white background. The yellow lines are irregularly shaped like triangles. The blue and red lines are more prominent in the middle of the black lines. There are also black lines that appear to be scribbles. The white background has a rough texture to it.