Step 6: On the left side of the body, draw a very long angled line as a guide for Mewtwo's first leg. This line should be similar to a backward letter Z. To the right, draw a long, sloping, vertical line as a guide for the other leg. This line shouldn't bend or curve. On the right-most side, draw a very long, S-shaped line as a guide for the tail. Draw the tail as high up as the head.
That's it for the guides! For the next steps, use darker lines for a more defined drawing.
Step 7: Inside the head, under the diagonal construction line, draw a triangular shape for Mewtwo's eye. Make the bottom, right side of the eye round. Inside the eye, draw a small, U-shaped line for the iris. Inside the iris, draw an even smaller, U-shaped line and shade it in for the pupil. Off to the side, draw a tiny circle for a highlight.
Step 8: On top of the head, draw two short, angled lines for Mewtwo's horns. These shapes should be similar to little squares. Use the diagonal line to help you with their placement.
Step 9: Darken the outer edges of the circle and muzzle guide to create the rest of Mewtwo's head. Inside the muzzle, curve the line inward to create the mouth. Above the mouth, draw a tiny dot for the nostril.