|Owl Series, 1|
The chapter header art from the Owl series were painted very detailed, but didn't print very large so a lot of the meatiness was lost. Here are some views of'em as created.
You may notice some wing elements in common between each of these. I like to put in "easter eggs" for people to discover---making the art also a sort of toy. Each of the images in the book interlock with each other, overlapping like index cards to share background image pieces with each other. The frontispiece contains a guide key. :)