Step 6:
Unfold the folds of steps 1 and 3.

Step 5:
Valley-fold over these two lines.

Step 2:
Prefold in half.

Step 4:
Valley-fold over this line.

Step 3:
Valley-fold over these two lines.

Step 10:
The size of the lid-paper is 15x15cm or 6x6inches.
Prefold over these 4 lines.

Step 8:
Tape or glue both edges together.

Step 9:
The box-part is done....

Step 7:
Pull both edges towards each other, see arrows.

Step 1:
The size of this orange color paper is 18x18cm or 7x7inches.
Valley-fold over these 2 lines.

Step 16:
Valley-fold the flap downwards.

Step 15:
Press these edges downwards

Step 12:
Valley-fold over these 2 lines.

Step 11:
First, valley-fold over the 2 lines at the bottom right, then mountain-fold over the 2 diagonal lines in the middle. And valley-fold over the 2 lines at the top left.

Step 14:
Valley-fold the tip at the bottom of the arrow upwards.

Step 13:
Unfold the folds of step 12.

Step 21:
Insert the lid in the opening of the box-part

Step 19:
Open the model, see arrows

Step 20:
Make sharper folding lines

Step 18:
Prefold over this line.

Step 17:
Repeat steps 12 to 16 on the backside