Book excerpt: Colored pencil painter Alyona Nickelsen reveals how to use the medium to push the limits of realistic portraiture. Colored Pencil Painting Portraits provides straightforward solutions to the problems that artists face in creating lifelike images, and will prime readers on the intricacies of color, texture, shadow, and light as they interplay with the human form. In this truly comprehensive guide packed with step-by-step demonstrations, Nickelsen considers working from photo references versus live models; provides guidance on posing and lighting, as well as planning and composing a work; discusses tools, materials, and revolutionary layering techniques; and offers lessons on capturing gesture and expression and on rendering facial and body features of people of all age groups and skin tones.