Reverse fold the back leg asymetrically again in the opposite direction. Thin the back of the leg by one fourth, repeat behind. Reverse fold the tail upward. Reverse fold again. Reverse fold asymetricaly.
Crimp fold the tail while simultaneously pushing half of the middle of the tail inside out.
Fold and unfold the flap not quite halfway. Sink the two areas triangularly. Note that the crease does not go point to point. Outside reverse fold. Pull out two small hidden flaps.