Flashcards Back Design

Hello people who's reading this. So basically i got low scores in last semester math exam. So the teacher told us to make something that related to math. So we did something easy, doing a flashcards filled with math questions and some math definitions. I designed the sun and moon on the back of the cover, laminated it and cut it one by one. 

This math stuff was a group project. They're also helped me, but not on the design. So let's just say i did the moon and sun design myself. But i didn't take pictures of the moon card.