black will make it much easier to tell that this is a fox, not a dog or a wolf or something else.
here is the fox colored in with a pencil. notice that the lower part of the fox's face is left white. the tip of the tail is also left white.
this snoozing fox is so easy to draw, and really cute, too.
step 1) start with an oval for the fox's hip area, and a circle for its head. add a triangle for the the nose.
step 2) next you add two leaf shapes on the top of the circle for the ears, and a "u" or "v" shape on the bottom 