In tribute to Earth Day, this tutorial demonstrates one way to draw a tree transitioning through the seasons. There are many ways to interpret this concept, and I encourage you to challenge yourself by picking a unique layout or different reference. Materials needed: Premier Brush|Fine Art Markers in Light Blue PB-47, Spanish Orange PB-123, Spring Green PB-25 & Goldenrod PB-69. Premier Illustration Markers in size 05 and Brush Tip: Black, Brown, Sienna, Orange, Green, & Blue. Feel free to explore other color options as well. There is no right or wrong choice.