Portrait of the dogs playing poker by Cassius Marcellus Coolidge (September 18, 1844 – January 24, 1934), available at Wikipedia, assumed allowed under Fair Use.
Imperial Guards
Portrait of the Imperial Bodyguard Zhanyinbao (1760) by unknown artist, available at Eugene Fromentin: Le Simoon
“Le Simoon” by Eugène Fromentin (October 24, 1820 – August 27, 1876), available at Wikimedia, assumed allowed under Fair Use.
Self Portrait as Hamlet
“Self Portrait as Hamlet” by Eugène Delacroix (26 April 1798 – 13 August 1863), available at Wikiart, assumed allowed under Fair Use.
The Coin Collector
“The Coin Collector” by Joos van Craesbeeck (c. 1605/06 – c. 1660), available at Moo Of I site, assumed allowed under Fair Use.
Where There Are People Money May Be Made
“Where There Are People Money May Be Made” by Adriaen van de Venne (1589 – 1662), available here, assumed allowed under Fair Use.
Butterfly
“The Butterfly” by Childe Hassam (1859-1935), assumed allowed under Fair Use.
Elisabeth Charlotte de Orleans
Portrait of Élisabeth Charlotte d’Orléans (1676 – 744) by an unknown artist, assumed allowed under Fair Use.
Paisagem com arvoredo e figura
“Paisagem com arvoredo e figura” (Landscape with Grove and Figure) by Portuguese painter Alfredo Keil (1850-1907), assumed allowed under Fair Use.
Untitled by Ismail Gulgee
Untitled painting from 2001 by Pakistani painter Ismail Gulgee (1926-2007), assumed allowed under Fair Use.