Step 10: On the top part of the dragon's head, lightly sketch a couple of curved lines for the first horn. Make the bottom of the horn thick and the top pointy. Darken the lines when you get the shape right. Make the lines wavy. You can make the horns as big or as small as you want. Below the first horn, draw the other horn using a couple more long, curved lines. This horn should be slightly bigger than the first one. Make the bottom part thick and the top pointy.
Step 11: Draw a series of small, triangular shapes along the top for the spikes on the dragon's head and neck. On the right side of the jaw, draw two big, cone-like shapes for more spikes. You can skip these spikes if you want.
Step 12: Use the angled line under the dragon's body, on the left, as a guide to draw the first arm. Follow the path of the guide and lightly sketch the shape of the arm around it. Use short, curved lines around the guide at the top to emphasize the muscle structure. The forearm should tuck into the top arm a bit. When you get the shape right, darken the lines. Add a pointy spike at the elbow. Make the bottom part of the shape thinner for the wrist. On the bottom, right side, draw a couple of small, pointy shapes for the digits that are folded back.
Step 13: Use the angled line on the right as a guide to draw the dragon's hind leg in a similar way. Lightly sketch the thick shape of the leg around the guide. Make the top part wide and the bottom narrower. The top part of the leg should be similar to a curved letter V. When you get the shape right, darken the lines. The bottom half of the dragon's leg should be tucked behind the top half. Make the bottom half thinner. Curve the shape at the bottom and add a couple of spiky lines on the right for the digits pointing back.
Step 14: Use the long, angled line on the top, right side of the dragon's body as a guide to draw the first wing. Darken the lower half of the guide and add a second line to the right to make the shape thicker. Make the bottom part slightly thicker. Add a small, triangular shape where the line bends for a spike. Darken the top half of the guide and add another line to make the shape thicker. Keep this shape thin overall. The top part should be especially thin and pointy.
Starting where the shape bends, draw a long line that curves up for the digit-like structure of the dragon's wing. Below that, draw another long, curved line but make it more horizontal for another digit-like structure. Below, draw another long, curved, digit-like line that slopes downward a bit. Pay attention to the lengths of these lines. At the bottom draw a shorter line that slopes down.