GRID STEP. You can print out the base construction lines and start drawing on tracing paper or you can draw the grid layout yourself using the following steps. Draw a square which will act as the frame of cow portrait.
GRID STEP. Outline the general shape of the head, the eyes and the upper body of the cow.
GRID STEP. Sketch the ears. Detail the upper body. Erase inner lines of the head.
GRID STEP. Detail the ears and forehead. Sketch the bell.
GRID STEP. Sketch the corns. Work on the whole figure of the cow, adding more details to the bell and the upper body.
GRID STEP. Add eye pupils.
GRID STEP. Erase redundant lines.
GRID STEP. Color the eyes, the muzzle and the upper body.