Step 20: Draw a series of short strokes along the guide line on the left for the top edge of the cat's tail. On the bottom, draw a curved line that's made up of short strokes for the bottom edge of the tail.
Step 21: For a cleaner look, erase as much as you can of the initial guide lines. Don't worry about erasing all of the guides. It's okay to leave some behind. Re-draw any final sketch lines you may have accidentally erased.
Final Step: Add some shading to your Himalayan cat drawing for extra detail. Use a dark value for the ears. Using short strokes, draw a shape that surrounds the face. Then shade the inside using a dark value. Shade lightly at first, and then gradually build up the level of darkness that you like. For a more detailed guide on how to shade, check out this tutorial: How to shade.
Himalayan cats have a point coloration. This means that their "points" (face, ears, feet and tail) are darker. Use a dark value for a seal point coloration. You can use a lighter value for a different type of point coloration. Use a lighter value to shade the rest of the body. Use longer strokes that go in the direction of the fur. Separate each individual stroke a bit so that the white of the paper comes through and creates a more fur-like texture. The Birman is a similar cat breed, but the ends of the feet are light. Use a light value on the feet to turn your cat drawing into a Birman. It's a good idea to use reference as you draw for an accurate depiction of the cat breed you like.
Add some shadows all over using a slightly darker value to give the figure more dimension and volume. Vary the pressure on your pencil to get different degrees of tonal value. Pick the direction of the light source when shading so that the shadows are consistent with it. Add a cast shadow underneath to ground the Himalayan cat so it doesn't appear to be floating. Don't forget to pause the video after each step to draw at your own pace.