Arnold's universe is appealing because of its clever mix of technical mastery and poignant themes, reflecting a society in perdition. By using the power of the cult of Mami Watta, Arnold makes a remarkable appeal to his compatriots to wake up. The artist is the winner of the Goethe Discovery Award 2020/Visual Arts and his work is already part of several fine collections such as the Goethe Institute and the contemporary art center Doual'art.