Only the front of the square piece of paper is coloured.
Step 1:This is the front of the paper. The backside is completely white.
Fold the paper in half over this line.
Step 2:
Fold the piece above the yellow line to the backside by making
a mountain-fold over this line.
Step 3:
Fold the piece of step 2 back to the front by making
a valley-fold over this line.
Step 4:
Turn the model.
Step 5:
Make a valley-fold over the yellow line.
The corner indicated by the pink arrow is pulled downwards,
in the direction of this arrow, when you make this fold.
Step 6:
Here a part of the fold from step 5 is already done.
The corner of step 5 is just a little below this pink arrow.
Now, press the place indicated by the arrow flat from above.
Step 7:
Repeat step 5 and 6 on the left-side of the model, see
the yellow line.
Step 8:
Make a valley-fold on each corner, see the 4 yellow lines.
Step 9:
Make a valley-fold on each corner indicated by a pink arrow.
These folds are for making the model more rounded.
Step 10:
Make a valley-fold over this yellow line.
Step 11:
And make a valley-fold over this line.
Then, turn the model again.
The flat origami tree is ready!
