I made more pictures to show you how to make it. I think they will be enough for you to understand everything!
Step 1: Materials
- 5 sheets of paper A4 from one color ( I choose pink it'll be "outside color")
- 10 sheets of paper A4 from another color ( I choose blue it'll be "inside color")
- a pencil
- a ruler
- and a small sheet of paper with measurement 9 cm x 9 cm ( if you don't have you can make it)
Step 2: Cuting the parts
In this way make all the other sheets and then cut them. When you finish you must have 30 sheets from the outside color and 60 - from the inside color.
Step 3: Folding the module
When you finish with the folding module you must have 2 pockets and 2 insertions.
Make all the sheets in that way. This is the part that you'll need a lot of time. You have to fold 90 sheets.
I made a video on how to fold it. I'm sorry for the low quality. i made it with my phone.