He gave up music training to study art at the Academy of Fine Arts in Kraków under Leon Wyczółkowski. Weiss originally painted historical or mythological paintings, but later switched to Expressionism after being profoundly influenced by Stanisław Przybyszewski.
Weiss relinquished his musical training to pursue a career in art at the Academy of Fine Arts in Kraków under Leon Wyczółkowski. Initially, he focused on historical or mythological paintings, but eventually transitioned to Expressionism after being profoundly influenced by Stanisław Przybyszewski.