The predominantly white composition seems to have made the camera underexpose slightly. Opening the aperture up a stop or two would have brought out the brillance of the white letting the colours stand out more and helped the effect of the shoes as a Jackson Pollock canvas you were after. I like this little study.
I like how this picture is close up and doesn't have too much of a background. Some people have trouble with that and have distracting backgrounds. I like how the paint stands out on the white shoe. Nice job!