Francis Cotes
(1726 - 1770)
 

Francis Cotes RA was an English portrait painter, one of the pioneers of English pastel painting (or drawing), and a founding member of the Royal Academy in 1768.

https://en.wikipedia.org/wiki/Francis_Cotes

Portrait of Joseph (1741-1786) and his Brother John Gulston (1750-1764)
1754
Pastel on blue paper, mounted on canvas
67,3 x 82,6 cm
The J. Paul Getty Museum, Los Angeles, US
https://www.getty.edu/art/collection/object/108F5W

 

In this double pastel portrait, the brothers Joseph and John Gulston appear close-up in half-length, standing before an expanse of wooded landscape. The elder brother, Joseph, age thirteen, wears a "Van Dyck" costume, a costume in the style of Anthony van Dyck's portrait paintings from the 1600s. Also in a historicizing vein, his younger brother John wears a dress, traditionally worn by both boys and girls until they reached four years of age, and holds a wicker basket full of colorful summer blossoms.