Boleslaw Buyko, a Polish artist from Vienna, was a colleague and acquaintance of Olga Boznanska. Boleslaw's stepchildren are depicted in the work “Portrait of Children”; they appear to us tired and confused, but at the same time loving and devoted children. With tenderness and care, the girl hugs her younger brother, who grabbed her hand and clung to her with trust and protection. Their eyes express sadness and thoughtfulness, the state characteristic of the portraits by Olga Boznanska. The artist emphasized the unbreakable bond and closeness between a brother and a sister, as well as their relationship. Despite the cold range of colors, she managed to depict warm family relationships, as well as penetrate into their childhood world.