Step 20: Use the line on the far left side as a guide to draw the first hind leg. Sketch lightly at first. When you get the structure of the leg right, darken the lines. Follow the guide line closely as this leg bends more than the front legs. The saiga's hind leg should be thicker at the top than the top of the front leg. Add some strokes near the bottom for the hoof.
Step 21: Use the last line under the saiga's body as a guide to draw the other hind leg the same way. Use the first hind leg as a template to draw the other hind leg. Don't overlap the shape of the first hind leg at the top.
Step 22: Use the remaining lines and shapes as guides to draw the rest of the saiga antelope's body. Darken the outer edges of the guides at the top to create the back. Now darken the outer edges of the guides at the bottom to create the underside. Add an extra bump to the right of the front legs for the chest. On the top, left side of the body, draw the tail using a series of short strokes that point down.
Step 23: 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 a series of short, horizontal strokes on the saiga's horns to create the rings. Now add some shading to your drawing to give it more dimension and volume. Pick the direction of the light source so that the shadows are consistent with it. Vary the pressure on your pencil to get different degrees of tonal value. Don't worry about shading too smoothly. A rough value creates a coarser texture for the saiga's coat. For a more detailed guide on how to shade, check out this tutorial: How to shade.
Add a cast shadow underneath. This helps ground the saiga antelope so it doesn't appear to be floating.
Add more shading for extra detail. Use a medium value for the rest of the saiga antelope's body. As you shade the body, use strokes that go in the general direction of the coat hair. Use a lighter value for the underside of the body. Shading your saiga drawing can be time-consuming, so be patient and take breaks. It's always a good idea to use reference as you draw. Remember to pause the video to draw at your own pace.