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Step 6: Draw three lines under the iguana's body as guides for the legs and feet. Bend the lines to indicate where the joints will go. The line on the right is similar to the letter Z.
Step 7: Draw a long line that curves in front of the body as a guide for the iguana's tail. The longer this line is, the longer the tail will be.
That's it for the initial sketch! From this point on, press harder with your pencil to get a more defined sketch.
Step 8: Draw the eye inside the reptile's head using the lines as guides for its placement. The shape of the eye is similar to a football. Add two lines inside the shape to form the eyeball. Draw a tiny circle inside that to represent glare. Draw a vertical line near the middle for the slit-like pupil. Shade the inside of the eye using a value that's lighter than the pupil, but don't shade the tiny circle. It should be blank to look like glare. Add a few lines around the eye for extra detail. Draw multiple lines to indicate the wrinkles and scales around the iguana's eye.
Step 9: Use the initial lines as guides to draw the iguana's mouth and nose. The mouth consists of a wavy line that goes from the small arc to the middle of the head. The nose is a dot with a circle around it above the iguana's mouth.