Drawing techniques include using basic shapes and correct proportions, understanding perspective and contrast, and working from reference materials.
It is well known, that photography has taken over the drawing to large extent. Photography has its advantage of accurately representing visuals while for centuries drawings and artists were the only representation of visual arts.
In this modern era, the arts are not forgotten. The arts of drawing and sketching are learned with fervor and exhibited with enthusiasm.
Drawing a portrait needs some basic understanding of shapes and structures. And observing a subject closely to draw it on paper is the foundation to develop the sketch into realistic and awesomeness.
Form and Proportion
Form and proportion comes very easy with the experienced artist. But for the beginners and aspiring artists, it is very important to have correct form and proportion. To have a correct proportion, you can measure the dimensions of subject using tools such as compass, ruler and even with a finger.