Step 6:
Valley-fold this edge downwards.

Step 5:
Prefold over these 2 lines.

Step 2:
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 4:
Squash-fold the flap.

Step 3:
Valley-fold one flap straight upwards.

Step 10:
Mountain-fold the triangular flap to the inside.

Step 8:
Valley-fold the triangular flap upwards.

Step 9:
Pull these 2 ends outwards, in the direction of the arrows.

Step 7:
Press/push these edges downwards/flat.

Step 1:
The other side of this paper is orange.
Prefold over these 4 lines, then turn the paper.

Step 16:
Push this corner downwards by making an inside reverse fold over these 3 lines.

Step 15:
Bookfold to the right

Step 12:
Repeat steps 4 to 11 on the other three flaps.

Step 11:
Push the two ends towards each other again.

Step 14:
Valley-fold over this line.

Step 13:
Bookfold one layer to the left.

Step 21:
Valley-fold over these 4 lines, to reveal more of the orange side.

Step 19:
Repeat steps 14 to 18 on the left,
mirrorwise.

Step 20:
Valley-fold over this line.

Step 18:
Push this edge to the right, see pink arrow.

Step 17:
Mountain-fold over these 2 lines.

Step 22:
Mountain-fold over the two outer lines.
Then valley-fold over the longer line in the middle.

Step 28:
Make the same zig zag folds on the other wing.

Step 25:
Make the same fold (=valley-fold) on the layer below.

Step 26:
Press the orange tip flat between your fingers, see larger arrows.
Press the edge of the neck inwards a little, see smaller arrows.

Step 24:
Hold the model on the spot between the 2 arrows.
Then push the head to the right by making a mountain-fold over the 2 lines on the top left and a valley-fold over the 2 lines at the bottom right.

Step 23:
Fold over these three lines.

Step 29:
Push these 4 corners inwards with your finger by making an inside reverse fold over the 4 sets of three lines.

Step 27:
Pull the end out of the model, see small arrow.

Step 30:
This is how the goose looks from above.