This double portrait, "probably painted in 1907, shows none of the decorative quality so dominant in Vienna, but instead delves into the mysteries of his sitters' personalities in a painterly manner that is somewhat reminiscent of Munch, but is more tentative, more searching, more intensely felt." (From The Expressionit Roots of Modernism by Peter Lasko (google books).
The Sisters Karoline and Pauline Fey, March / April 1905