While in New York between travels to Tahiti and Paris, within one year of his arrival Lamotte received several mural commissions including and exhibitions including a solo show at the Wildenstein Gallery. Other exhibits included the Art Institute of Chicago in 1941, the Carstairs Gallery in New York City annually from 1941–1950s, and a solo show at the Palm Beach Gallery in 1965. Like Pierre Sicard and Grigory Gluckmann, Lamotte was represented by the Dalzell-Hatfield Gallery in Los Angeles, which had an exhibition in 1975.