Lol I just going slowly each day posting part of this XD
So, how did you do all this?
Quite simple, I took one of my mother's piano music CD case. took out all the papers. The front cover is measure of 4x4 if I remember correctly, and you can actually take out the back from the inside. Where there some part on the top and bottom side you can just pluck the inside of the case out. The cover of the back is like 4x 4. some inches, because it extend to the little side so you bend that part of the paper, then that it and then I designed it. I used watercolor paper, because well i use watercolor. XD