Early Rendering

I'm working to extend my skills at natural history illustration.  One task amongst most of the courses is practicing rendering Feathers.   

In this work I've sectioned areas and now I will start the pain staking task of individually rippling each strand of feather and focusing on the shadows, linework and tonal values to see if I can turn this into something more realistic and have it bounce off the page.

This illustration is about an hour of work, I estimate another four to five hours before it will be completed.