Step 20: Use the shapes on the right side as guides to draw the first leg. Simply darken the outer edges of the shapes to create the leg. Make the lines bumpier for texture. Add a few extra curved lines in the middle for the leg's joint. Add a few lines for the folds of skin too. The shape of the T. rex's leg should get narrower at the bottom, above the foot.
Use the triangle- like shape at the bottom as a guide to draw the foot. Use a series of short, curved lines to create the individual toes inside the guide. At the end of each toe, draw a small shape with a pointy tip for the Tyrannosaurus rex's claws. The toe in the middle is facing front, so the top of the shape curves up toward the leg. The claws should be round at the top and thin and pointy at the bottom.
Step 21: Darken the initial circle in the middle to create the body. Use bumpier lines for texture. Make the top part extra bumpy. Don't overlap the leg or arm on the right as you darken the shape of the T. rex's body.
Step 22: Darken the outer edges of the shapes behind the arm on the left to create the other leg. Use the triangular shape at the bottom as a guide to draw the foot. Follow the top edge of the guide to draw a thin wavy shape for the middle toe. Add the T. rex's claw at the tip. Draw the inner toe the same way as you follow the edge of the guide. This toe should be shorter. This leg is pointing more toward the left, so these toes should appear longer than the ones on the right.
Step 23: Use the lines on the top, right side as guides to draw the shape of the Tyrannosaurus rex's tail. Follow the guide but make the shape wavier as you darken the lines.
Step 24: 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 T. rex drawing to give it more dimension and volume. Pick the direction of the light source when shading 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; the rough value gives the skin texture. 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 Tyrannosaurus rex so it doesn't appear to be floating.
Add even more value throughout the body for extra detail. For a rough, scaly texture, draw random tiny, squiggly lines throughout the body. This process may seem more intricate than it actually is. Don't overthink it. Just add random squiggly lines all over the dinosaur's body. This is the Tyrannosaurus rex version made popular by the Jurassic Park movies. Real T. rexes may have had feathers!
Use a lighter value on the veins to make them stand out and on the claws for shine. Add the value lightly at first, and then gradually build up to the level of darkness that you want. For an easier version, skip the texture and just use a medium value all over the T. rex 's body. Or color your drawing! Shading can be time-consuming, so be patient and take breaks. Don't forget to pause the video to draw at you own pace.