Chenco Columbian Artist "In Hoc Signo Vinces" Acrylic On Paper Painting 1997. Chenco, Simon Gomez Ruiz, is a Columbian born painter who is the father of "phychographic" style of painting which colorfully blends indigonous, sensationalist and cubist influences. Measures Frame: 21" x 17" Art: 15" x 11"