“Holiday on the Hudson.” ca. 1912. Oil on canvas. Collection of the Cleveland Museum of Art. via commons.wikimedia.org/wiki/File:%27Holiday_on_the_Hudson%27_by_George_Luks,_c._1912.JPG“The Swan Boats.” ca. 1922. Oil on canvas. Sothebys. via commons.wikimedia.org/wiki/File:The_Swan_Boats_by_George_Luks.jpg.“Verdun, France.” ca. 1915. Watercolor on paper. The Phillips Collection. via commons.wikimedia.org/wiki/File:George_Luks_-_Verdun,_France_-_Google_Art_Project.jpg.
These images are all in the public domain, “The Swan Boats” being in the public domain in the United States because its creator died before 1948.
“The Parasol.” 1913. Collection of the Minneapolis Institute of Art. In the public domain in the United States because the artist has been dead longer than 70 years. via commons.wikimedia.org/wiki/File:Richard_E._Miller_-_The_Parasol_-_2012.85.1_-_Minneapolis_Institute_of_Arts.jpg and http://godsandfoolishgrandeur.blogspot.com.“Scarlet Necklace”. via arthive.com. In the public domain.“Arranging Flowers”. 1910. Private collection. via the-athenaeum.org. In the public domain.“La Toilette”. ca. 1910. Collection of the Columbus Museum, Columbus, Georgia. via commons.wikimedia.org. In the public domain.