Galaxia was part of a trio of female characters that were created by Clyde Langer for one of his paintings.
She was depicted as a slender, purple-haired woman carrying a Sontaran blaster. In 2009, Langer's painting was displayed in the International Gallery of London. When the Mona Lisa came to life that year, she animated Galaxia's blaster in order to arm herself. (TV: Mona Lisa's Revenge)