After Austria's liberation from German occupation, Gall returned to his attic at 16 Dauphine Street, Paris and resumed his career as an artist.
In 1961, while hanging paintings for an exhibition for the Salon des Independents in the Grand Palais, Gall fell several metres and could not work for over a year.
[1] Gall painted mostly figures but also a variety of subjects including bright street scenes, portraits, still life, and landscapes.
Gall's figures were often women performing everyday and artistic activities such as sewing or ballet dancing.
[1] On 29 March 1962, Maximilien Gauthier wrote of Gall's work in The Literary News, "the Luxembourg gardens, terraces of coffee, his balls resonate July 14, while living the charm of Paris".
On 10 April 1964, André Weber wrote in The Amateur Art, "Point riot of colour, no continuance, but a balanced sweet and harmonious concerto with nuances, subtleties, the preciousness palette, an incredible short refinement.
He met artists including Christian Bérard, Othon Friesz, André Derain and Pablo Picasso.
In 1938, in Paris, Gall received an honourable mention for his painting, The Spanish Refugees, which was acquired by the French State.
In 1939, Gall won a silver medal at the Salon d'Asnieres and received a scholarship from the Government of Hungary.
[2] In 1947, the year of major strikes in France, Gall received a Gold Medal for his painting, Bread for the People.
The Marlborough Fine Art Gallery in London curated an exhibition of thirty of Gall's works.
Five forgeries of Galls works were found at the Dominion Gallery of Max Stern in Canada.