Did this with a laptop touchpad, so line tool and polygonal select it is! It's how I draw with the mouse too, I like using this old drawing of mine as an example

Some grumpy woman from Newfoundland, probably.
(Or uh, equivalent? I don't know how Canadian geography works in Suchai & Co's verse. The story takes place in "Vancouvoronto" (Vancouver, British Columbia + Toronto, Ontario) which is also right between the great lakes and the pacific ocean. You may or may not know those two things are nowhere near eachother irl)