This painting depicts the mature HIV particle, with structural proteins in blue, viral enzymes in magenta, accessory proteins in green and viral RNA in yellow. Host proteins and tRNA are shown in purple.
Several educational resources are available at the Protein Data Bank, using this image in an interactive Flash activity and a poster.
The science behind the painting is described in: BAMBED 40, 291-296 (2012)
Click on the image for a full-size version.