Belongs to the Brno circle of artists, even if he originally hails from Třebíč, where in the mid-1990s, just prior to his studies at the School of Creative Arts (FaVU). At the end of the 1990s Ryška began to work with computers. This shift from events and interventions into his surroundings to computer comic visuals gives the impression of a fundamental watershed in Ryška’s creative works. The artist begins to create virtual, often animated, stories, which continue however to maintain a conceptual approach typical for Ryška, subversive humour. His short, animated film, Ursonáta (2004) plays a little with the legacy of Dadaism. Despite their limited conceptualism and wild post-modern mix of high and low (art), even these Ryška works have their own irreplaceable poetic visuality.