Fantasy Cross Section 2

I'm obsessed with these fantasy cross-sections! So much fun to draw. Each one begins as a rough sketch in my trusty gridded Moleskine. I then photograph it into my trusty iPad and digitally ink and paint in Procreate, using a Nomad brush.

I have no idea what to do with them though. I friend has suggested I make coloring books out of the linework. Another thought is to get more complex and make search-and-find books.

Suggestions?