Alma-Tadema left Taeye's studio in November 1858 returning to Leeuwarden before settling in Antwerp, where he began working with the painter Baron Jan August Hendrik Leys, whose studio was one of the most highly regarded in Belgium. Under his guidance Alma-Tadema painted his first major work: "The Education of the children of Clovis" (1861). This painting created a sensation among critics and artists when it was exhibited that year at the Artistic Congress in Antwerp. It is said to have laid the foundation of his fame and reputation. Alma-Tadema related that although Leys thought the completed painting better than he had expected, he was critical of the treatment of marble, which he compared to cheese.