Alex Grey is known for his unusual subjects and use of vibrant colors. In this piece, he obviously uses many different colors on the spectrum. His use of contrasting colors in the background makes the yellow "sun" area really stand out as a halo around the body. The mostly analagous colors in the body look similar, but still pop out against each other and then the contrasting colors make all of the arteries and bones and such stand out in such a way that they almost seem real. I think that this piece is overall very successful and makes me want to look at so many more of his paintings, though I've already looked at most.