The app used for this comic is fantastic and well worth the $5.99 I spent on it. Though this comic looks basic, the tools in this app allow an impressive and powerful amount of control that will show up in future comics.
After exploring multiple apps for the iPad Pro & Apple Pencil, Procreate is the current winner.
Hardware: iPad Pro with Apple Pencil Software: Procreate Time: In minutes during a two hour flight while sketching more than just this comic. Thanks to Mei for cleaning up some of the other sketches’ artifacts! Fun fact: Airlines would be awesome if they offered adults-only flights.