Step 10: Use the circle as a guide to draw the brachiosaurus' head. Add a bump on top for the bony protrusion on the head. Brachiosaurus had small heads relative to their bodies. Draw a few lines within the head for the wrinkles and folds of skin.

Step 11: Use the lines on the right as guides to draw the brachiosaurus' front legs. Lightly sketch the shape of the right leg as you follow the path of the line. When you get the structure of the leg right, darken the lines. Add a few small lines at the bottom for the toes and some at the top for the folds of skin. Draw the leg on the other side by using the other line as a guide. The front part of the leg on the other side should be somewhat hidden by the front leg.

Step 12: Use the lines on the left as guides to draw the brachiosaurus' hind legs. Sketch lightly at first as you follow the basic path of the guide. The top of the leg should be thicker. Add some bumps along the way to indicate the muscle structure. Darken the lines only when you get the structure right. Draw the leg on the other side by using the last line as a guide.

Step 13: Draw the brachiosaurus' long neck by using the line as a guide. Make the shape of the neck thicker by using two parallel lines that connect the body. Start out sketching lightly to get the curve of the neck right, then darken the lines.

Step 14 (optional): Use the remaining lines as guides to draw the rest of the brachiosaurus' body and tail. Darken the guides as you shape the lines to create the body. Sketch out the shape of the tail as you follow the basic path of the guide. Brachiosaurus had muscular tails, so make the base thicker as you darken the lines.