1. Draw a brick shape for the body of the cow. Always draw these basic initial shapes very lightly.
2. Make the triangle for the head and then draw the neck. Being outlining the legs.
3. Draw the curves out from the body and head. Finish the two front legs you have started.
4. Draw the ears and eye and tail. Add the cow's udder. Finish the legs and erase the lines you do not need anymore. Hopefully you drew those first guidelines lightly!
5. Darken the eye and draw the horns and mouth and nostril.