For the March 2014 "Mid-ism" challenge in Daily Paintworks: the idea was to paint in the middle ground between Impressionism and Expressionism. In my mind, Impressionism rejected the artifice of the Academy to pursue a truth in visual representation of the "real" world and Expressionism rejects a reliance on representing the external world in order to pursue a truth in showing the internal one.
My thoughts were of responding as simply as I could to what I saw, and allowing that response to be my own as much as possible. How close it comes to truth in either regard is perhaps not for me to judge!
Aloha!