Pencil drawing by Friedrich Wilhelm Kuhnert, 1906.

Frog digestive tract. Source: Paul K (peacay) on Flickr.

“Day’s End”, Bess Larkin Harris, ca., 1928.

Textile design, 1930s; office of Donald Deskey Associates, USA. Image via Cooper Hewitt.

“Seven Green Apples”, Douglas Portway, 1991.

"Bohdi with Buddah", Maryfran Cardamone, 2010. Mixed media on paper.

"Bodinnick, Cornwall", Frances Hodgkins, ca. 1931. Watercolour.

“Sphenophyllum”, Erik Gonzales, 2012. Powdered marble, emulsion, acrylic, and charcoal on canvas.

"The Layers of Time 3”, Jennifer Coyne Qudeen.

"The Vases”, Amédée Ozenfant, 1925.

"Tree in the workshop garden”, Ferdinand Hodler, 1917.

"Clo i baddräkt", Einar Jolin, 1937 [bukowskis.com]

“House Between Palm Trees”, Ivan Aguéli, ca. 1895.

"Herabhängender Zweig mit roten und grünen Tomaten", Christian Rohlfs, 1906. Watercolour.

Photo from @maumera on Instagram

Buddhist temple hanging, Japan, Mid-Edo 1675-1775. Image via Yorke Antique Textiles.