Mario Tomas was born on July 10, 1943 in Marini, Bosnia. After specialising in various art techniques, including with Professor Mare Van der Bromm, Académie Royal des Beaux-Arts de Liege in Belgium.
Numerous awards pave the way for Mario Tomas, including the art plaque of the city of Zagreb in 1987. His works can be found in several museums and private collections internationally. Mario Tomas is also registered in the Encyclopedia of Croatian Art. He is a member of Croatian Art Associations (HZSU and DHLU) since 1972. His work includes more than 100 solo exhibitions and over 300 group exhibitions internationally. He lives and works in Zagreb.