HST RGB-colour composite image of the Cosmic Snake (red filter: F160W, green: F105W, and blue: F606W). Magnifications are highlighted using coloured regions, from transparent for regions amplified 1–10 times, to red for regions magnified more than 500 times, as defined in the colour bar (on the right side). Galaxies marked with a cross are foreground lensing cluster member galaxies that contaminate the Cosmic Snake.