These Bronzes Statues of young girls are found in front of the Charlemagne building which is one of the many the European Union Institutions of Brussels. They were made by sculptor René Julien in 1998. Located right next to the Shuman subway station at 170 Rue de la Loi.
The set of bronze sculptures in their entirety
The statue to the right is called L’espérance (Hope)
L’oiseleuse et La copine au chapeau
I haven’t found any information anywhere about the last two sets