Elongation, distorted hands, feet, necks. This is the single-most characteristic that I look for and admire in works. If it’s stretched, pressed, enlarged, or diminished beyond its normal state, I love it. And for this, I cannot get enough of Modigliani.
Those necks! Those eyes!
Less obvious is the use of elongation in Caravaggio’s The Supper at Emmaus. The elongated right hand of the disciple sitting at the table draws the viewer in to the painting.
And distortion can portray a sense of the grotesque, the humor, the abstraction of a figure or scene. I especially like the abstraction in Eastern European art, particularly Russian art, like Kandinsky, which inspired some of those in the surrealist movement.