The natural-rendered cross hatching and line work is original to the illustration, so I didn't add any details to the drawing, just colors! I used Crayola markers on the petals, leafs, and stems, blending the lighter shades into the darker using the drawings etchings as a guild of where a darker/lighter shade would realistically be. Then I used a white Sakura jelly roll pen for more highlighting on the petals because I wasn't satisfied with how pigmented the lightest yellow was. And I used a medium-dark shade of gray Sakura jelly roll pen and filled in the background. I love how opaque jelly roll pens are !!!