In portraying his more recent subjects, Marks has allowed his brush to wander a bit from a realistic portrait of his subject. We see his composition and use of color applied to the canvas with a celebratory manner. Marks will heighten a color to emphasize a mood, or he will withhold a stroke or two to eliminate details, which he feels, are not important to his overall vision of the subject. It's taking place in my work. Things like careful detail become less important, and in fact become annoying because they seem to get in the way of the process of getting feeling into a painting.
Harmony flows differently.
The bottom line is that what makes an artist feel good about his or her work changes - and continues to change. Combined with his concentration on color and light, the tendency in the more recent Marks paintings is to move into expressionism, where Marks will put more feeling into his work. The result is that the viewer has to work a little harder to understand a Marks painting, but the reward in doing so is far greater. In viewing the paintings, one gets the chance to experience the same feelings that Marks used in developing the work. Moreover, the viewer is presented with a greater intellectual challenge.