Gantner is a self-taught artist.
His passion for the Impressionists and the Post-Impressionists was responsible for his move to France.This allowed him to freely study their work and to explore their universe. The majority of Gantner's paintings are set in Provence and the Midi.
The artist's fascination with quaint mountain villages with their narrow, winding streets becomes a perfect vehicle for the true subject of his work's solitude. Gantner's paintings are visual records of absence. This theme is reinforced through the artist's use of confined luminous and shadowed spaces that are defined and contained by vertical walls of stone. Even when the painting is not of a narrow village street, solitude and absence are still present.
