His artwork became well-known posthumously, when, in the spring of 1965, a major retrospective exhibition revealed him as one of the important post-World War II European modern artists.

Although his artistic talent was becoming appreciated, Ţuculescu did not attend a higher-education art school; instead, he went to the Faculty of Natural Sciences within the University of Bucharest, where he would graduate in 1936.

Posthumously, his paintings would be the subject of critical acclaim, and, promoted by figures such as Petru Comarnescu, were the focus of numerous exhibitions inside Romania and abroad.

He did not abandon their influence as he moved toward abstract expressionism, making use of decorative elements originating in the folk art of his native region, Oltenia.

Țuculescu's paintings have in common with the drawings of American artist Jerry McDaniel "the bold use of strong, bright colors, and the expressivity of repetitive geometric elements".