Androids 7, 10 and 12

Back in High School I had better things to do than paying attention in class and doing assignments. Instead I'd doodle on the back of almost every sheet I was handed. I got no credit for this chem homework because I started a drawing, liked it, and didnt want it to get ruined when I turned it in. So I kept it and finished it. I dont like how the letters show through, but its still one of my better drawings from high school.