Pierre-Auguste Renoir. Young Girl in a Pink-and-Black Hat, ca. 1891 (Metropolitan Museum of Art, New York).

Oil on canvas: 40.6 x 32.4 cm.

Visit > Metropolitan Museum of Art, New York.
More > Pierre-Auguste Renoir at Wikipedia.

Giorgio Morandi. Flowers ('Fiori'), 1952 (private collection).

Oil on canvas: 30 x 20 cm(!). Auctioned at Sotheby's Milan, November 2012.

More > Giorgio Morandi at Wikipedia.

Karin Kneffel. Untitled, 2014 (artist’s portfolio).

Oil on canvas: 180 x 300 cm(!).

Visit > Karin Kneffel official.
Visit > Karin Kneffel at: Galerie Klaus Gerrit Friese, Galerie Schönewald und Beuse, Gagosian.
More > Karin Kneffel at Wikipedia.

Anders Zorn. Sandhamn Effect ('Sandhamnseffekt'), 1914 (private collection).

Oil on canvas: 100 x 64 cm. Auctioned at Bukowskis Stockholm, December 2018.

More > Anders Zorn at Wikipedia.
More > Zornmuseet, Mora.

Edgars Iltners. In the Meadow ('Pļavā'), 1975 (Latvijas Nacionālais mākslas muzejs, Riga).

Oil on canvas: 150 x 115 cm.

Visit > Latvijas Nacionālais mākslas muzejs, Riga.
More > Edgars Iltners at Wikipedia (latvian).

Carl Fredrik Hill. Fruit Trees in Blossom III ('Blommande fruktträd III'), 1877 (private collection).

Oil on canvas: 50.5 x 61 cm. Auctioned at Stockholms Auktionsverk, December 2013. Auctioned at Bukowskis Stockholm, October 2018.

More > Carl Fredrik Hill at Wikipedia.

Ernst Ludwig Kirchner. Czardas Dancers (‘Csárdásdanseressen’), 1908 (Gemeentemuseum Den Haag, The Hague).

Oil on canvas: 150 x 200 cm. Update (2019): As of October 2019 known as Kunstmuseum Den Haag.

Visit > Gemeentemuseum Den Haag, The Hague.
More > Google Arts & Culture.
More > Ernst Ludwig Kirchner at Wikipedia.

Rudolf Schlichter. Helene Weigel, 1928 (Lenbachhaus, Munich).

Oil on canvas: 83.5 x 60 cm. Recently united with the portrait of Bertolt Brecht: here.

Visit > Lenbachhaus, Munich.
More > Rudolf Schlichter at Wikipedia.

Henri de Toulouse-Lautrec. The Englishman at the Moulin Rouge, 1892 (Metropolitan Museum of Art, New York).

Oil on cardboard: 85.7 x 66 cm.

Visit > Metropolitan Museum of Art, New York.
More > Google Arts & Culture.
More > Henri de Toulouse-Lautrec at Wikipedia.

Auguste Herbin. Midday (‘Midi’), 1953 (private collection).

Oil on canvas: 162.2 x 113.4 cm. Auctioned at Christie’s London, February, 2012.

More > Auguste Herbin at Wikipedia.

Willem Key (attributed). Portrait of a Lady ('Ritratto di dama'), ca. 1550 (Palazzo Rosso, Genoa).

Oil on wood: 53 x 40 cm. Photo credit: Hen Magonza.

Visit > Palazzo Rosso, Genoa.
More > Willem Key at Wikipedia.

Mario Nubauer. From aimlessly to aimlessly, 2016 (artist’s portfolio).

Mixed media on canvas: 180 x 200 cm.

Visit > Mario Nubauer official.
Visit > Mario Nubauer at: PM/AM, London.

Frédéric Bazille. Family Reunion ('Réunion de famille'/ 'Portraits de famille'), ca. 1868 (Musée d'Orsay, Paris).

Oil on canvas: 152 x 230 cm.

Visit > Musée d'Orsay, Paris.
More > Frédéric Bazille at Wikipedia.

Frans Snyders. An Owl in the Sky surrounded by a Variety of Birds (‘Un mochuelo y multitud de pájaros’), ca. 1630 (Museo Nacional del Prado, Madrid).

Oil on canvas: 91.5 x 188 cm.

Visit > Museo Nacional del Prado, Madrid.
More > Frans Snyders at Wikipedia.

Léon Bonnat. Self-Portrait ('Portrait de l'artiste'), 1855 (Musée d'Orsay, Paris).

Oil on canvas on wood: 46 x 37.5 cm.

Visit > Musée d'Orsay, Paris.
More > Léon Bonnat at Wikipedia.

Pekka Halonen. Wintry Day ('Vinterdag'/ 'Talvipäivä'), 1909 (private collection).

Oil on canvas: 70.5 x 51 cm. Auctioned at Bukowskis Helsinki, December 2017.

More > Pekka Halonen at Wikipedia.
More > Pekka Halonen at Alternative Finland.

Hans Leonhard Schäufelein. St. Jerome in the Wilderness ('Der heilige Hieronymus'), ca. 1505 (Gemäldegalerie, Berlin).

Oil on lime: 47 x 35 cm.

Visit > Gemäldegalerie, Berlin.
More > Hans Leonhard Schäufelein at Wikipedia.

Henri Matisse. The Piano Lesson, 1916 (Museum of Modern Art, New York).

Oil on canvas: 245.1 x 212.7 cm.

Visit > Museum of Modern Art, New York.
More > Henri Matisse at Wikipedia.

British School 17th century. The Cholmondeley Ladies, ca. 1610 (Tate Britain, London).

Oil on oak: 88.6 x 172.3 cm.

Visit > Tate Britain, London.
More > The Cholmondeley Ladies at Wikipedia.
More > Technical essay at Tate Britain, London.

Henry Robert Morland. The Ballad Singer, ca. 1764 (Yale Center for British Art, New Haven/ USA).

Oil on canvas: 63.5 x 76.2 cm.

Visit > Yale Center for British Art.
More > Google Arts & Culture.
More > Henry Robert Morland at Wikipedia.

Edvard Munch. Winter Night (‘Vinternatt’), 1901 (Munchmuseet, Oslo).

Oil on canvas: 73 x 49.5 cm. Photo credit: Sidsel de Jong.

Visit > Munchmuseet, Oslo.
More > Edvard Munch at Wikipedia.

Albert Herter. Woman with Red Hair, 1894 (Smithsonian American Art Museum, Washington).

Oil on canvas: 81.3 x 54.6 cm.

Visit > Smithsonian American Art Museum, Washington.
More > Google Arts & Culture.
More > Albert Herter at Wikipedia.

Johannes Kahrs. Untitled ('Portrait Mädchen mit Lippenstift'), 2011 (artist's portfolio).

Oil on canvas: 47 x 61 cm.

Visit > Johannes Kahrs at Zeno X Gallery.
More > Johannes Kahrs at Wikipedia.

Agnes Martin. Untitled, ca. 1955 (private collection).

Oil on canvas: 118.1 x 168.3 cm.

More > Agnes Martin at Wikipedia.