In these photos, we are working on rhythm. Harley would speed up, slow down, take longer or shorter strides, and rarely moved in a straight line. In the first photo, he is less than relaxed, his head has come up, and rhythm is no where to be found. In the second photo, he has relaxed and is beginning to get into a groove, his own personal rhythm.
We are doing serpentines, circles, loops, and changes of rein and working on staying on two tracks and not losing his shoulder or allowing his hind end to swing in or out. His rhythm gets better every time I ride him.