CT: I love painting from life if I have a specimen in front of me. But that can be difficult because I often work in tropical, very remote places. I take photographs, observe the plant, and draw sketches. At home, I put them all out in front of me and make a mood board. Then I paint! I use oil paints if I want to capture an environment. The oil paintings can take three months. Oil paint can take weeks to dry, and I work in layers. If I want to show lots of plants together on a white background, then I’ll use watercolor, which is a traditional medium for botanical illustration. For a scientific paper, I’ll use pen and ink.