Ohl is a self-taught artist who lived and worked in Palembang, Jakarta and Yogyakarta. He left Indonesia in 1954 and settled in the Hague. Painter, watercolorist and draughtsman in a style reminiscent of the late period of G.P. Adolfs. He made the Indonesian illustrations in J.C. Hamel's Soldatendominee (The Hague, 1948).