When you are drawing a portrait, it is important to make a decision on the background you want to use. Some people like to paint an entire wall or floor with a particular color, while others prefer to use only a wood floor. Whatever the choice, you’ll want your background to be complementary to your subject. The right color and brushwork will make the painting look more interesting and will not overpower the subject. Also, different backgrounds suit different subjects better.
If you want to draw a dynamic portrait, it is important to have an interesting background. A dark background will help you create an evocative drawing. Use a background that has strong contrasts. If you use a light background, it will look flat and boring. If you want a more vibrant background, choose a darker one. Having a different color for your background will make your portrait more interesting.