Step 11: Tighten the shape of this Disney cartoon character's eyes. Make his eyelids look closed by drawing his eyelids slightly below the original eye guides. Inside the eye, draw a half circle for his iris, another half circle inside of it for his pupil. Shade it in and draw a tiny circle for glare.

Step 12: Now learn how to draw this Phineas and Ferb character's beak. Draw Perry the Platypus's beak by using the oval as a guide. Draw the bottom part of the beak so it comes inside the oval, and the top part extends upward toward the middle of his eyes.

Step 13: Now learn how to draw this Phineas and Ferb character's arms. Using the initial line as a guide, draw in the left arm by making the line thicker. Use the circle at the end as a guide to draw his fist. Draw a couple of lines to indicate Perry the Platypus's knuckles and thumb.

Step 14: Draw the right arm the same way you did the left. Thicken the line a bit and draw the fist. Add a few more curves to indicate Perry the Platypus's fingers and thumb. Use the image above for reference when drawing Perry the Platypus's arm.

Step 15: Use the initial rectangle shape and the lines for his legs as guides to draw Perry the Platypus's body. Curve his torso to give him a dynamic pose. Draw his legs at the end of his body, which end as curves above the ovals of his feet.