Let's begin with creation of a skeleton, be defined about location of the head, chest and back areas. Pictures increase.

Designate a muzzle of a horse, a neck and a body.

Draw the hill and an arrangement of feet.

We begin a portrayal of a muzzle of Spirit.

Further ears, part of a mane, neck and back.

Draw forward feet of Spirit, a mane.

We draw a stomach, hind legs and a tail.

We paint over dark sites on a body at a horse.

Different foreshortenings of a muzzle of a horse are given below.

Further Spirit's sketches and Rain (Thunder-storm).