Derivative poster for Calculus class for 25 EC points!! This is a rule that people (including me) keep forgetting orz
I might crop the chibi out later and replace this poster with it instead. If I do, it'll be after AP testing so everytime I visit my own gallery, I'll see this poster and it'll help me
remember ^^" I hope ^^""
I missed my copics so much TT^TT *inhales fumes*
Time: 3 hours
Tools: Copic Sketch, White gel pen, Pilot inking pen, some other black brush marker I had lying around