A collection of various Colombian banknotes featuring different denominations and portraits of notable figures. The banknotes are arranged in a grid-like pattern, with each note overlapping the one below it slightly. The denominations range from 500 to 2000 pesos, and the portraits include a man with a beard, a woman with long hair, and a man with a mustache. The banknotes display a mix of colors, including green, blue, and red, with intricate designs and security features.