Lives and works in Paris and Lille. He graduated with a distinction from the Ecole des Beaux-Arts in Paris where he trained in François Boisrond's studio. He participated in the 61st Salon de Montrouge. His first encounter with film was motivated by his desire to see the animation of painted forms. Not that these figures were unfamiliar with movement, the history of painting has constantly set the body in movement, but rather that these figures were waiting for a scheme, a device that would resuscitate them, for a mechanism to disrupt time. Image by image, cinema as the site of anima would appear to be ideal for such metamorphosis to take place.
In more recent works, Léonard has used string puppets with a view to extending the very first moments of awakening, of birth, and the indeterminate and incipient aspects of movement.