Всё надо фиксировать...
Ну, и свет, конечно...

INTERIEUR MED STAFFELI, BREDGADE 25 (INTERIOR WITH EASEL, BREDGADE 25)
oil on canvas; 79 by 71cm., 31 by 28in
© Sotheby's

Interior with an Easel, Bredgade 25
Painted in 1912
oil on canvas; 31 x 27 5/8 in. (78.5 x 70.3 cm.)
© Christie's
Vilhelm Hammershøi (Danish, 1864–1916)