When printing you can try choosing landscape layout for better placement on A4 paper
1) Draw a rectangle that will define the conditional proportions and boundaries of the chosen drawing.
2) From the middle of the rectangle, draw one vertical and one horizontal line equally dividing the shape.
3) Draw another horizontal line equally dividing the upper half of the rectangle. Similarly, draw a horizontal line equally dividing the bottom half of the rectangle.
4) Draw a vertical line equally dividing the left half of the rectangle. Similarly, draw a vertical line equally dividing the right half of the rectangle.
Mark off the width and height of the picture. Draw two ovals for the crocodile’s head and body. Draw a smooth guideline for the head.
Draw the shape of the body. Add guidelines for the body and tail.
Add the snout (the upper jaw) and tail of the crocodile.
Define the proportions of the legs and feet. Mark, with a short line, the lower jaw point.
Delineate the legs and the lower jaw of the Nile crocodile.
Draw toes. Indicate the head shape. Add eyes and scales on the tail.
Work on the Nile crocodile, paying attention to details such as claws, nostrils, and teeth.
Contour, trying to vary the thickness and blackness of the line. Draw more details and the ground. Erase all guidelines.