According to Cogniat, there are certain elements in his art that have remained permanent and seen throughout his career. One of those was his choice of subjects and the way they were portrayed. "The most obviously constant element is his gift for happiness and his instinctive compassion, which even in the most serious subjects prevents him from dramatization..." Musicians have been a constant during all stages of his work. After he first got married, "lovers have sought each other, embraced, caressed, floated through the air, met in wreaths of flowers, stretched, and swooped like the melodious passage of their vivid day-dreams. Acrobats contort themselves with the grace of exotic flowers on the end of their stems; flowers and foliage abound everywhere." Wullschlager explains the sources for these images: