As before I started the cover in Indesign, laying out the text on a file that i'll eventually use to make the pdf files for print, so I can work around the words when I draw image in the centre and nothing overlaps awkwardly. I then copy/paste these basic shapes in Illustrator to draw the pictures, building up layers of increasingly dark detail to give it depth. This time round there's a strange symmetry between the 2 sides, which wasn't initially intentional - things like the wall in the foreground on both halves, and the broken cart vs the old wheelchair. Plus the general contrasting style of the 2 large buildings. I might carry this on to book 3 if possible, to add another level of detail into the art.
Next I paste these black and white vectors into photoshop and go to town with the textures to add some colour and life, also using the same indesign shapes from earlier as layer masks to show the edges of the circles and the split between the worlds, which gets lost a bit when doing the illustrator work. I also add in some leaves and rougher detail which is much easier in photoshop than illustrator. Next up: book 3!
The Different Kingdom books will be released sometime next year by Solaris.