Step 1:
The other side of this origami paper is white. Turn the paper.

Step 6:
Valley-fold over these 2 lines

Step 5:
Squash-fold the flap

Step 2:
Prefold over these 4 lines

Step 4:
Valley-fold this flap upwards

Step 3:
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 10:
Valley-fold the triangular flap upwards

Step 8:
Valley-fold the edge indicated by the arrow downwards

Step 9:
Push/press the edges indicated by the arrows downwards.

Step 7:
Unfold the folds of step 6

Step 16:
Valley-fold over these two lines

Step 15:
Bookfold one layer to the left

Step 12:
Mountain-fold the triangular flap to the inside of the model

Step 11:
Pull the two ends outwards, in the direction of the arrows

Step 14:
Repeat steps 5 to 13 on the other three flaps, see arrows

Step 13:
Push the two ends towards each other again, see arrows

Step 21:
Hold the model the same as I do here. Then squash-fold the flap indicated by the arrow with your other hand, against the fingers which are holding the model.

Step 19:
Valley-fold the flap upwards

Step 20:
Bookfold the edge indicated by the arrow to the right. Repeat step 16 and 19 on the flap at the left

Step 18:
Repeat step 16 on the flap at the left. Then rotate the model and repeat step 16 on another flap

Step 17:
Bookfold one layer to the right

Step 22:
Mountain-fold over this line

Step 28:
Repeat steps 26 and 27 on the left, see arrow

Step 25:
Repeat steps 21 to 24 on the left, see arrow

Step 26:
Make an inside reverse fold over these lines. The upper line is a mountain-fold. Valley-fold on the same place at the layer below

Step 24:
Valley-fold the arm to the front, see short red line

Step 23:
Push/press/fold the tip downwards on the spot indicated by the arrow

Step 29:
Mountain-fold over this line

Step 27:
Pull the tip to the inside of the model by making an inside reverse fold over these lines. The line on the left is a mountain-fold. Valley-fold on the same place at the layer below

Step 30:
First, press the head inwards from aside by making a mountain-fold over the upper line. Keep holding the head between your fingers and push it downwards, use the other three folding-lines as guidance.

Step 31:
Rotate the leg on the left counter-clockwise a little, see yellow arrow. And push/fold the other leg backwards, see green arrow.