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 Diplodocus. Draw two ovals that will help to define places for its head and body. Draw a line, which will act as the center of its head.
Sketch the body and neck of the Diplodocus. Draw a guideline for its tail.
Define places for the legs and jaw.
Outline the shapes of the legs and snout of the dinosaur.
Draw the eye and tail of the Diplodocus. Pay attention to detailed parts of its legs and neck. Define places for its back spines.
Add the claws and back spines and neck. Work on the figure, paying special attention to detail.
Contour the Diplodocus, trying to vary the thickness and darkness of the line. Add more detail and add the ground. Erase all guidelines.