really fun, love the artstyle and the music! a couple things that i think would be good to change are:
+ 1 ink, since its a pencil, might be better to change it to + 1 lead(?) maybe
change coins to clips in the menu and ui, for continuity, and
i know its a demo, but a proper settings menu? it doesnt perform overly amazing on lower end devices, so having a resolution and other optimisation toggles would be great
other than that, look forward to release!