Illustrator can be a profession on its own. Many talented artists replaced pencils with digital tools and became illustrators. Each Illustrator strives to develop a unique style. Illustrations have always been very enjoyable projects for me. Unfortunately, there hasn’t been a frequent demand for them. As far as the style goes, it is always subject to the topic and nature of the project, the same as the trend for any design. In some cases, this decision is made intuitively in other cases it is intentional rational choice.