Afterwards he was sent to Hanover to assist Anne Marie Carl-Nielsen in enlarging the sculpture of the horse for her equestrian statue of Christian IX.
[1][3] In 1915, he presented a statue of a boy, Niobide, at the Charlottenborg Spring Exhibition, earning him a scholarship allowing him to travel widely in Europe.
His bronze masterpiece Josef (1939) was the culmination of several years' work in crafting youthful figures.
Gudmundsen-Holmgreen received many official commissions thanks to his fine eye for facial and psychological expression, although he was less adept in creating clothed figures.
[1] One of Gudmundsen-Holmgreen's best known works is the bust of Niels Bohr (1956) which stands on Frue Plads outside the University of Copenhagen.