Here are some of my favorite pages (and the covers) from The Art of Holmes! The book features concept art, character sheets, backgrounds, episode analyses, and storyboards. It offered some neat insight into Miyazaki’s original vision for the series, and how the rest of the production team carried on his work after he decided not to return.
If you enjoy the series and can get your hands on one, I highly recommend it. There are many nice, subtle things referenced or highlighted in the concept art. It’s really cool to see how many different directions the show could’ve gone in.
(I apologize if any of the pictures are hard to see - the book is very delicate, so I couldn’t spread the pages out completely flat.)