That's it for the initial sketch! From this point on, press harder with your pencil to get a more defined drawing.
Step 6: Draw the squirrel's eye by using the line in the center to help you with placement. The shape of the eye kind of resembles a football. Shade the inside part except for a couple of portions that represent glare.
Step 7: Draw the squirrel's nose at the end of the guide line as a small curved line.
Step 8: Draw the mouth under the nose as two curved lines.
Step 9: Use the initial guides to draw the squirrel's ears. Use quick, short strokes to represent the fur and add lines within them for structure.