Before beginning this step-by-step instruction, ensure you understand two major concepts in Procreate. First, you should feel comfortable drawing a shape with a solid boundary. This means a closed shape created with a solid line (we recommend using technical pen at full opacity). 

Second, you must understand how layers function. If you're familiar with Photoshop, you already know about layers. However, if working in layers is brand-new to you, research this concept through the Procreate Handbook or online tutorials. Working digitally allows color work to exist on separate layers under the line drawing, keeping your sketch’s lines crisp and visible at all times.

If those two things sound familiar to you, let's get started.