Green is my favorite color. Last week I was looking for inspiration in the produce department of my grocery store when I was taken in by the beautiful way that white transitions to green in these vegetables, a head of bok choy and a leek. I intentionally kept the white area very light; in fact I actually started with even less work in those areas than you see here.
Prismacolor makes a pretty good range of greens (as you can see in my trusty old swatch chart) but, as is also true of their other colors, the lighter shades are much waxier (less pigment = more wax I assume) and are more difficult to blend.
I did the bok choy first, and I was really fighting with the texture of my Stonehenge paper which is unusual. Then it dawned on me: it has a smooth side and a very slightly textured side. How had I forgotten this? So, I was careful to use the smoother side for the leek. Look at the difference (click to enlarge):
(Hey, that's the first time Blogger allowed me to place images side-by-side!