Mr Fox (and a process video)

I thought I'd share my process on one of the children's book illustrations I recently did. I start from a sketch I do on my iPad Pro (in Autodesk Sketchbook - makes lines supppper smooth), then bring that into Adobe Illustrator and start building up group by group.

Here's the video
let me know your thoughts/questions/am I the only one who doesn't use a stylus?