|For this and all other images here, click for a much bigger version, showing all the textures and brushstrokes|
Clive's process for the internal illustrations is interesting: he makes a sketch of the proposed illustration, and then prepares a number of sheets of thin paper, decorated with various weights and textures of black brushstrokes. From these sheets he cuts various shapes, which are arranged into a collage to form the illustration. Some elements are stencilled in using shapes cut freehand into blank paper. See here for more details of his workings.
Here they are in situ, working with Youmans' text:
Hicks-Jenkins has also created the covers for three of Youmans's other books:
Thaliad comes out at the start of December.