So I wanted to mess around with inverse colors. Which is basically drawing in the complimentary color to the color you want, and the darker you draw that color the lighter the actual color you want will be. This is obviously unfinished, but I thought I'd share it with you guys if you want an interest challenge to do at home!

(This was my sketch for it lmao)
"When Denki says your acid looks like cum."

Basically how you do this, is pick you the colors you want to use and take a picture of them and inverse it. Then you draw with those inverses colors. Obviously mines not done but well, this it a huge piece of paper- it takes a lot of ink to cover and I've ran out of my green ink. I have to get more :,(