I apologize for any confusion, but it appears that there has been an error as the artwork “Abstract Composition (SF 61)” by Sam Francis, created in 1967 through the medium of lithography and belonging to the Abstract Expressionism movement, is not visible within the provided visual context. It is important for us to view the artwork itself in order to offer a precise description.
To describe Sam Francis’s abstract compositions in general terms, his works typically feature a vibrant interplay of colors and shapes, frequently characterized by large fields of saturated hues that are often splattered or layered to create a dynamic and spontaneous effect. The compositions tend to focus on the expressive qualities of color and form rather than depicting recognizable subjects, underlying the abstract genre of such artworks. If the actual piece were visible, one would likely observe these signature elements of Francis’s style.